Publications | UMD Stellarator Group

2025

Stellarator divertor design by optimizing coils for surfaces with sharp corners

Todd Elder, Matt Landreman, Chris Smiet, and Robert Davies

Submitted (2025)

arXiv version bibtex

@article{Elder,
  author = {Elder, Todd and Landreman, Matt and Smiet, Chris and Davies, Robert},
  title = {Stellarator divertor design by optimizing coils for surfaces with sharp corners},
  journal = {Submitted},
  year = {2025},
}

Efficient calculation of magnetic fields from ferromagnetic materials near strong electromagnets, and application to stellarator coil optimization

Matt Landreman, Humberto Torreblanca, and Antoine Cerfon

Submitted (2025)

arXiv version bibtex

@article{ferritic,
  author = {Landreman, Matt and Torreblanca, Humberto and Cerfon, Antoine},
  title = {Efficient calculation of magnetic fields from ferromagnetic materials near strong electromagnets, and application to stellarator coil optimization},
  journal = {Submitted},
  year = {2025},
}

On the curvature-driven ion-temperature-gradient instability and its available energy

Ralf Mackenbach, Per Helander, Matt Landreman, Stephan Brunner, and Josephine Proll

J. Plasma Phys. 91, E144 (2025)

journal version bibtex

@article{ITGAvailableEnergy,
  author = {Mackenbach, Ralf and Helander, Per and Landreman, Matt and Brunner, Stephan and Proll, Josephine},
  title = {On the curvature-driven ion-temperature-gradient instability and its available energy},
  journal = {J. Plasma Phys.},
  year = {2025},
  volume = {91},
  pages = {E144},
  doi = {10.1017/S0022377825100846}
}

Exponential Spectral Scaling: Robust and Efficient Stellarator Boundary Optimization via Mode-Dependent Scaling

Byoungchan Jang, Rory Conlin, and Matt Landreman

Submitted 91, E144 (2025)

arXiv version bibtex

@article{ESS,
  author = {Jang, Byoungchan and Conlin, Rory and Landreman, Matt},
  title = {Exponential Spectral Scaling: Robust and Efficient Stellarator Boundary Optimization via Mode-Dependent Scaling},
  journal = {Submitted},
  year = {2025},
}

Surface Current Optimization and Coil-Cutting Algorithms for Stage-Two Stellarator Optimization

D Panici, R Conlin, R Gaur, D W Dudt, Y G Elmacioglu, M Landreman, T Elder, N Snir, I Gissis, Y Nikulshin, and E Kolemen

Submitted 91, E144 (2025)

arXiv version bibtex

@article{Panici,
  author = {Panici, D and Conlin, R and Gaur, R and Dudt, D W and Elmacioglu, Y G and Landreman, M and Elder, T and Snir, N and Gissis, I and Nikulshin, Y and Kolemen, E},
  title = {Surface Current Optimization and Coil-Cutting Algorithms for Stage-Two Stellarator Optimization},
  journal = {Submitted},
  year = {2025},
}

Omnigenous umbilic stellarators

R Gaur, D Panici, T M Elder, M Landreman, K E Unalmis, Y Elmacioglu, D Dudt, R Conlin, and E Kolemen

Submitted 91, E144 (2025)

arXiv version bibtex

@article{umbilic,
  author = {Gaur, R and Panici, D and Elder, T M and Landreman, M and Unalmis, K E and Elmacioglu, Y and Dudt, D and Conlin, R and Kolemen, E},
  title = {Omnigenous umbilic stellarators},
  journal = {Submitted},
  year = {2025},
}

Machine-learning Closure for Vlasov-Poisson Dynamics in Fourier-Hermite Space

N Barbour, W Dorland, I Abel, and M Landreman

J. Plasma Phys. 91, E140 (2025)

arXiv version journal version bibtex

@article{Barbour,
  author = {Barbour, N and Dorland, W and Abel, I and Landreman, M},
  title = {Machine-learning Closure for Vlasov-Poisson Dynamics in Fourier-Hermite Space},
  journal = {J. Plasma Phys.},
  year = {2025},
  volume = {91},
  pages = {E140},
  doi = {10.1017/S0022377825100822}
}

How does ion temperature gradient turbulence depend on magnetic geometry? Insights from data and machine learning

M Landreman, J Y Choi, C Alves, P Balaprakash, R M Churchill, R Conlin, and G Roberg-Clark

J. Plasma Phys. 91, e120 (2025)

arXiv version journal version bibtex

@article{ITG_ML,
  author = {Landreman, M and Choi, J Y and Alves, C and Balaprakash, P and Churchill, R M and Conlin, R and Roberg-Clark, G},
  title = {How does ion temperature gradient turbulence depend on magnetic geometry? Insights from data and machine learning},
  journal = {J. Plasma Phys.},
  year = {2025},
  volume = {91},
  pages = e120,
  doi = {10.1017/S0022377825100536}
}

Optimization of passive superconductors for shaping stellarator magnetic fields

A A Kaptanoglu, M Landreman, and M C Zarnstorff

Phys. Rev. E 111, 065202 (2025)

arXiv version journal version bibtex

@article{KaptanogluPassive,
  author = {Kaptanoglu, A A and Landreman, M and Zarnstorff, M C},
  title = {Optimization of passive superconductors for shaping stellarator magnetic fields},
  journal = {Phys. Rev. E},
  year = {2025},
  volume = {111},
  pages = {065202},
  doi = {10.1103/PhysRevE.111.065202}
}

Reactor-scale stellarators with force and torque minimized dipole coils

A A Kaptanoglu, A Wiedman, S Hurwitz, M Landreman, J Halpern, and E J Paul

Nucl. Fusion 65, 046029 (2025)

arXiv version journal version bibtex

@article{KaptanogluDipoles,
  author = {Kaptanoglu, A A and Wiedman, A and Hurwitz, S and Landreman, M and Halpern, J and Paul, E J},
  title = {Reactor-scale stellarators with force and torque minimized dipole coils},
  journal = {Nucl. Fusion},
  year = {2025},
  volume = {65},
  pages = {046029},
  doi = {10.1088/1741-4326/adc318}
}

Electromagnetic coil optimization for reduced Lorentz forces

S Hurwitz, M Landreman, P Huslage, and A Kaptanoglu

Nucl. Fusion 65, 056044 (2025)

arXiv version journal version bibtex

@article{HurwitzForceOpt,
  author = {Hurwitz, S and Landreman, M and Huslage, P and Kaptanoglu, A},
  title = {Electromagnetic coil optimization for reduced Lorentz forces},
  journal = {Nucl. Fusion},
  volume = {65},
  pages = {056044},
  year = {2025},
  doi = {10.1088/1741-4326/adc9bf}
}

A family of quasi-axisymmetric stellarators with varied rotational transform

S Buller, M Landreman, J Kappel, and R Gaur

J. Plasma Phys. 91, E18 (2025)

arXiv version journal version bibtex

@article{iotaScan,
  author = {Buller, S and Landreman, M and Kappel, J and Gaur, R},
  title = {A family of quasi-axisymmetric stellarators with varied rotational transform},
  journal = {J. Plasma Phys.},
  year = {2025},
  volume = {91},
  pages = {E18},
  doi = {10.1017/S0022377824001351}
}

Efficient calculation of self magnetic field, self-force, and self-inductance for electromagnetic coils. II. Rectangular cross-section

M Landreman, S Hurwitz, and T M Antonsen Jr

Nucl. Fusion 65, 036008 (2025)

arXiv version journal version bibtex

@article{HurwitzII,
  author = {Landreman, M and Hurwitz, S and {Antonsen Jr}, T M},
  title = {Efficient calculation of self magnetic field, self-force, and self-inductance for electromagnetic coils. II. Rectangular cross-section},
  journal = {Nucl. Fusion},
  year = {2025},
  volume = {65},
  pages = {036008},
  doi = {10.1088/1741-4326/adb04e}
}

2024

Stellarator equilibrium axis-expansion to all orders in distance from the axis for arbitrary plasma beta

W Sengupta, E Rodriguez, R Jorge, M Landreman, and A Bhattacharjee

J. Plasma Phys. 90, 905900407 (2024)

arXiv version journal version bibtex

@article{SenguptaAllOrders,
  author = {Sengupta, W and Rodriguez, E and Jorge, R and Landreman, M and Bhattacharjee, A},
  title = {Stellarator equilibrium axis-expansion to all orders in distance from the axis for arbitrary plasma beta},
  journal = {J. Plasma Phys.},
  volume = {90},
  pages = {905900407},
  year = {2024},
  doi = {10.1017/S002237782400076X}
}

MONKES: a fast neoclassical code for the evaluation of monoenergetic transport coefficients

F J Escoto, J L Velasco, I Calvo, M Landreman, and F I Parra

Nucl. Fusion 64, 076030 (2024)

arXiv version journal version bibtex

@article{monkes,
  author = {Escoto, F J and Velasco, J L and Calvo, I and Landreman, M and Parra, F I},
  journal = {Nucl. Fusion},
  year = {2024},
  volume = {64},
  pages = {076030},
  doi = {https://doi.org/10.1088/1741-4326/ad3fc9}
}

Coil Optimization for Quasi-helically Symmetric Stellarator Configurations

A Wiedman, S Buller, and M Landreman

J. Plasma Phys. 90, 905900307 (2024)

arXiv version journal version bibtex

@article{Alex,
  author = {Wiedman, A and Buller, S and Landreman, M},
  title = {Coil Optimization for Quasi-helically Symmetric Stellarator Configurations},
  journal = {J. Plasma Phys.},
  year = {2024},
  volume = {90},
  pages = {905900307},
  doi = {10.1017/S0022377824000540}
}

Grad-Shafranov equilibria via data-free physics informed neural networks

B Jang, A A Kaptanoglu, R Gaur, S Pan, M Landreman, and W Dorland

Phys. Plasmas 31, 032510 (2024)

arXiv version journal version bibtex

@article{PINN,
  author = {Jang, B and Kaptanoglu, A A and Gaur, R and Pan, S and Landreman, M and Dorland, W},
  title = {Grad-Shafranov equilibria via data-free physics informed neural networks},
  journal = {Phys. Plasmas},
  year = {2024},
  volume = {31},
  pages = {032510},
  doi = {10.1063/5.0188634}
}

Optimization of Nonlinear Turbulence in Stellarators

P Kim, S Buller, R Conlin, W Dorland, D W Dudt, R Gaur, R Jorge, E Kolemen, M Landreman, N R Mandell, and D Panici

J. Plasma Phys. 90, 905900210 (2024)

arXiv version journal version bibtex

@article{GX_Optimization,
  author = {Kim, P and Buller, S and Conlin, R and Dorland, W and Dudt, D W and Gaur, R and Jorge, R and Kolemen, E and Landreman, M and Mandell, N R and Panici, D},
  title = {Optimization of Nonlinear Turbulence in Stellarators},
  journal = {J. Plasma Phys.},
  year = {2024},
  volume = {90},
  pages = {905900210},
  doi = {10.1017/S0022377824000369}
}

Efficient calculation of the self magnetic field, self-force, and self-inductance for electromagnetic coils

S Hurwitz, M Landreman, and T M Antonsen Jr

IEEE Transactions on Magnetics 60, 1 (2024)

arXiv version journal version bibtex

@article{Hurwitz,
  author = {Hurwitz, S and Landreman, M and {Antonsen Jr}, T M},
  title = {Efficient calculation of the self magnetic field, self-force, and self-inductance for electromagnetic coils},
  journal = {IEEE Transactions on Magnetics},
  year = {2024},
  volume = {60},
  pages = {1},
  doi = {10.1109/TMAG.2024.3455946}
}

Direct Microstability Optimization of Stellarator Devices

R Jorge, W Dorland, P Kim, M Landreman, N R Mandell, G Merlo, and T Qian

Physical Review E 110, 035201 (2024)

arXiv version journal version bibtex

@article{Jorge2023,
  author = {Jorge, R and Dorland, W and Kim, P and Landreman, M and Mandell, N R and Merlo, G and Qian, T},
  title = {Direct Microstability Optimization of Stellarator Devices},
  journal = {Physical Review E},
  volume = {110},
  pages = {035201},
  year = {2024},
  doi = {10.1103/PhysRevE.110.035201}
}

2023

The Magnetic Gradient Scale Length Explains Why Certain Plasmas Require Close External Magnetic Coils

J Kappel, M Landreman, and D Malhotra

Plasma Phys. Controlled Fusion 66, 025018 (2023)

arXiv version journal version bibtex

@article{Kappel1,
  author = {Kappel, J and Landreman, M and Malhotra, D},
  title = {The Magnetic Gradient Scale Length Explains Why Certain Plasmas Require Close External Magnetic Coils},
  journal = {Plasma Phys. Controlled Fusion},
  year = {2023},
  volume = {66},
  pages = {025018},
  doi = {10.1088/1361-6587/ad1a3e}
}

Topology optimization for inverse magnetostatics as sparse regression: application to electromagnetic coils for stellarators

A A Kaptanoglu, G P Langlois, and M Landreman

Computer Methods in Applied Mechanics and Engineering 418A, 115504 (2023)

arXiv version journal version bibtex

@article{CurrentVoxels,
  author = {Kaptanoglu, A A and Langlois, G P and Landreman, M},
  title = {Topology optimization for inverse magnetostatics as sparse regression: application to electromagnetic coils for stellarators},
  journal = {Computer Methods in Applied Mechanics and Engineering},
  volume = {418A},
  pages = {115504},
  year = {2023},
  doi = {10.1016/j.cma.2023.116504}
}

Understanding Trade-offs in Stellarator Design with Multi-objective Optimization

D Bindel, M Landreman, and M Padidar

J. Plasma Phys. 89, 905890503 (2023)

arXiv version journal version bibtex

@article{Padidar2023b,
  author = {Bindel, D and Landreman, M and Padidar, M},
  title = {Understanding Trade-offs in Stellarator Design with Multi-objective Optimization},
  journal = {J. Plasma Phys.},
  year = {2023},
  volume = {89},
  pages = {905890503},
  doi = {10.1017/S0022377823000788}
}

Sparse regression for plasma physics

A A Kaptanoglu, C Hansen, J D Lore, M Landreman, and S L Brunton

Phys. Plasmas 30, 033906 (2023)

journal version bibtex

@article{KaptanogluReview,
  author = {Kaptanoglu, A A and Hansen, C and Lore, J D and Landreman, M and Brunton, S L},
  title = {Sparse regression for plasma physics},
  journal = {Phys. Plasmas},
  year = {2023},
  volume = {30},
  pages = {033906},
  doi = {10.1063/5.0139039}
}

Single-Stage Stellarator Optimization: Combining Coils with Fixed Boundary Equilibria

R Jorge, A Goodman, M Landreman, J Rodrigues, and F Wechsung

Plasma Phys. Controlled Fusion 65, 074003 (2023)

arXiv version journal version bibtex

@article{Jorge2023SingleStage,
  author = {Jorge, R and Goodman, A and Landreman, M and Rodrigues, J and Wechsung, F},
  title = {Single-Stage Stellarator Optimization: Combining Coils with Fixed Boundary Equilibria},
  journal = {Plasma Phys. Controlled Fusion},
  year = {2023},
  volume = {65},
  pages = {074003},
  doi = {10.1088/1361-6587/acd957}
}

Direct Optimization of Fast-Ion Confinement in Stellarators

D Bindel, M Landreman, and M Padidar

Plasma Phys. Controlled Fusion 65, 065012 (2023)

arXiv version journal version bibtex

@article{Padidar2023,
  author = {Bindel, D and Landreman, M and Padidar, M},
  title = {Direct Optimization of Fast-Ion Confinement in Stellarators},
  journal = {Plasma Phys. Controlled Fusion},
  year = {2023},
  volume = {65},
  pages = {065012},
  doi = {10.1088/1361-6587/acd141}
}

An adjoint-based method for optimizing MHD equilibria against the infinite-n, ideal ballooning mode

R Gaur, S Buller, M E Ruth, M Landreman, I G Abel, and W D Dorland

J. Plasma Phys. 89, 905890518 (2023)

arXiv version journal version bibtex

@article{Gaur2023,
  author = {Gaur, R and Buller, S and Ruth, M E and Landreman, M and Abel, I G and Dorland, W D},
  title = {An adjoint-based method for optimizing MHD equilibria against the infinite-n, ideal ballooning mode},
  journal = {J. Plasma Phys.},
  year = {2023},
  volume = {89},
  pages = {905890518},
  doi = {10.1017/S0022377823000995}
}

Neoclassical transport in strong gradient regions of large aspect ratio tokamaks

S Trinczek, F I Parra, P J Catto, I Calvo, and M Landreman

J. Plasma Phys. 89, 905890304 (2023)

arXiv version journal version bibtex

@article{Trinczek,
  author = {Trinczek, S and Parra, F I and Catto, P J and Calvo, I and Landreman, M},
  title = {Neoclassical transport in strong gradient regions of large aspect ratio tokamaks},
  journal = {J. Plasma Phys.},
  year = {2023},
  volume = {89},
  pages = {905890304},
  doi = {10.1017/S0022377823000430}
}

Constructing precisely quasi-isodynamic magnetic fields

A Goodman, K Camacho Mata, S A Henneberg, R Jorge, M Landreman, G Plunk, H Smith, R Mackenbach, C D Beidler, and P Helander

J. Plasma Phys. 89, 905890504 (2023)

arXiv version journal version bibtex

@article{Goodman2022,
  author = {Goodman, A and {Camacho Mata}, K and Henneberg, S A and Jorge, R and Landreman, M and Plunk, G and Smith, H and Mackenbach, R and Beidler, C D and Helander, P},
  title = {Constructing precisely quasi-isodynamic magnetic fields},
  journal = {J. Plasma Phys.},
  year = {2023},
  volume = {89},
  pages = {905890504},
  doi = {10.1017/S002237782300065X}
}

2022

Direct stellarator coil optimization for nested magnetic surfaces with precise quasisymmetry

A Giuliani, F Wechsung, A Cerfon, M Landreman, and G Stadler

Phys. Plasmas 30, 042511 (2022)

arXiv version journal version bibtex

@article{GiulianiLeastSquares,
  author = {Giuliani, A and Wechsung, F and Cerfon, A and Landreman, M and Stadler, G},
  title = {Direct stellarator coil optimization for nested magnetic surfaces with precise quasisymmetry},
  journal = {Phys. Plasmas},
  year = {2022},
  volume = {30},
  pages = {042511},
  doi = {10.1063/5.0129716}
}

Mapping the space of quasisymmetric stellarators using optimized near-axis expansion

M Landreman

J. Plasma Phys. 88, 905880616 (2022)

arXiv version journal version bibtex

@article{QuasisymmetryLandscape,
  author = {Landreman, M},
  title = {Mapping the space of quasisymmetric stellarators using optimized near-axis expansion},
  journal = {J. Plasma Phys.},
  year = {2022},
  volume = {88},
  pages = {905880616},
  doi = {10.1017/S0022377822001258}
}

Greedy permanent magnet optimization

A Kaptanoglu, R Conlin, and M Landreman

Nucl. Fusion 63, 036016 (2022)

arXiv version journal version bibtex

@article{KaptanogluGreedy,
  author = {Kaptanoglu, A and Conlin, R and Landreman, M},
  title = {Greedy permanent magnet optimization},
  journal = {Nucl. Fusion},
  year = {2022},
  volume = {63},
  pages = {036016},
  doi = {10.1088/1741-4326/acb4a9}
}

Energetic particle loss mechanisms in reactor-scale equilibria close to quasisymmetry

E J Paul, A Bhattacharjee, M Landreman, D Alex, J L Velasco, and R Nies

Nucl. Fusion 62, 126054 (2022)

arXiv version journal version bibtex

@article{PaulEnergeticParticles,
  author = {Paul, E J and Bhattacharjee, A and Landreman, M and Alex, D and Velasco, J L and and R Nies},
  title = {Energetic particle loss mechanisms in reactor-scale equilibria close to quasisymmetry},
  journal = {Nucl. Fusion},
  year = {2022},
  volume = {62},
  pages = {126054},
  doi = {10.1088/1741-4326/ac9b07}
}

Stellarator coil optimization supporting multiple magnetic configurations

B F Lee, E J Paul, G Stadler, and M Landreman

Nucl. Fusion 63, 014002 (2022)

arXiv version journal version bibtex

@article{Lee,
  author = {Lee, B F and Paul, E J and Stadler, G and Landreman, M},
  journal = {Nucl. Fusion},
  year = {2022},
  volume = {63},
  pages = {014002},
  doi = {10.1088/1741-4326/aca10d}
}

Permanent magnet optimization for stellarators as sparse regression

A Kaptanoglu, T Qian, F Wechsung, and M Landreman

Physical Review Applied 18, 044006 (2022)

arXiv version journal version bibtex

@article{Kaptanoglu,
  author = {Kaptanoglu, A and Qian, T and Wechsung, F and Landreman, M},
  title = {Permanent magnet optimization for stellarators as sparse regression},
  journal = {Physical Review Applied},
  year = {2022},
  volume = {18},
  pages = {044006},
  doi = {10.1103/PhysRevApplied.18.044006}
}

A single-field-period quasi-isodynamic stellarator

R Jorge, G G Plunk, M Drevlak, M Landreman, J-F Lobsien, K Camacho Mata, and P Helander

J. Plasma Phys. 88, 175880504 (2022)

arXiv version journal version bibtex

@article{JorgeQI,
  author = {Jorge, R and Plunk, G G and Drevlak, M and Landreman, M and Lobsien, J-F and {Camacho Mata}, K and Helander, P},
  title = {A single-field-period quasi-isodynamic stellarator},
  journal = {J. Plasma Phys.},
  year = {2022},
  volume = {88},
  pages = {175880504},
  doi = {10.1017/S0022377822000873}
}

Optimization of quasisymmetric stellarators with self-consistent bootstrap current and energetic particle confinement

M Landreman, S Buller, and M Drevlak

Phys. Plasmas 29, 082501 (2022)

arXiv version journal version bibtex

@article{LandremanBullerDrevlak,
  author = {Landreman, M and Buller, S and Drevlak, M},
  title = {Optimization of quasisymmetric stellarators with self-consistent bootstrap current and energetic particle confinement},
  journal = {Phys. Plasmas},
  year = {2022},
  volume = {29},
  pages = {082501},
  doi = {10.1063/5.0098166}
}

Stochastic and a-posteriori optimization to mitigate coil manufacturing errors in stellarator design

F Wechsung, A Giuliani, M Landreman, A Cerfon, and G Stadler

Plasma Phys. Controlled Fusion 64, 105021 (2022)

arXiv version journal version bibtex

@article{stochasticStage2,
  author = {Wechsung, F and Giuliani, A and Landreman, M and Cerfon, A and Stadler, G},
  journal = {Plasma Phys. Controlled Fusion},
  year = {2022},
  volume = {64},
  pages = {105021},
  doi = {10.1088/1361-6587/ac89ee}
}

Direct computation of magnetic surfaces in Boozer coordinates and coil optimization for quasi-symmetry

A Giuliani, F Wechsung, M Landreman, G Stadler, and A Cerfon

J. Plasma Phys. 88, 905880401 (2022)

arXiv version journal version bibtex

@article{giuliani,
  author = {Giuliani, A and Wechsung, F and Landreman, M and Stadler, G and Cerfon, A},
  title = {Direct computation of magnetic surfaces in Boozer coordinates and coil optimization for quasi-symmetry},
  journal = {J. Plasma Phys.},
  year = {2022},
  volume = {88},
  pages = {905880401},
  doi = {10.1017/S0022377822000563}
}

Precise stellarator quasi-symmetry can be achieved with electromagnetic coils

F Wechsung, M Landreman, A Giuliani, A Cerfon, and G Stadler

Proc. Nat. Acad. Sci. 119, e2202084119 (2022)

journal version bibtex

@article{precise_qs_coils,
  author = {Wechsung, F and Landreman, M and Giuliani, A and Cerfon, A and Stadler, G},
  title = {Precise stellarator quasi-symmetry can be achieved with electromagnetic coils},
  journal = {Proc. Nat. Acad. Sci.},
  volume = {119},
  pages = e2202084119,
  year = {2022},
  doi = {10.1073/pnas.2202084119}
}

Magnetic fields with precise quasisymmetry for plasma confinement

M Landreman, and E Paul

Phys. Rev. Lett. 128, 035001 (2022)

arXiv version journal version bibtex

@article{precise_qs,
  author = {Landreman, M and Paul, E},
  title = {Magnetic fields with precise quasisymmetry for plasma confinement},
  journal = {Phys. Rev. Lett.},
  volume = {128},
  pages = {035001},
  year = {2022},
  doi = {10.1103/PhysRevLett.128.035001}
}

Improving the stellarator through advances in plasma theory

C Hegna, D Anderson, A Bader, T Bechtel, A Bhattacharjee, M Cole, M Drevlak, J Duff, B Faber, S Hudson, M Kotschenreuther, T Kruger, M Landreman, I McKinney, E Paul, M J Pueschel, J Schmitt, P Terry, A Ware, M Zarnstorff, and C Zhu

Nucl. Fusion 62, 042012 (2022)

journal version bibtex

@article{Hegna2021,
  author = {Hegna, C and Anderson, D and Bader, A and Bechtel, T and Bhattacharjee, A and Cole, M and Drevlak, M and Duff, J and Faber, B and Hudson, S and Kotschenreuther, M and Kruger, T and Landreman, M and {McKinney}, I and Paul, E and Pueschel, M J and Schmitt, J and Terry, P and Ware, A and Zarnstorff, M and Zhu, C},
  journal = {Nucl. Fusion},
  title = {Improving the stellarator through advances in plasma theory},
  year = {2022},
  volume = {62},
  pages = {042012},
  doi = {10.1088/1741-4326/ac29d0}
}

Stellarator optimization for nested magnetic surfaces at finite β and toroidal current

A Baillod, J Loizu, J P Graves, and M Landreman

Phys. Plasmas 29, 042505 (2022)

arXiv version journal version bibtex

@article{Baillod,
  author = {Baillod, A and Loizu, J and Graves, J P and Landreman, M},
  title = {Stellarator optimization for nested magnetic surfaces at finite β and toroidal current},
  journal = {Phys. Plasmas},
  year = {2022},
  volume = {29},
  pages = {042505},
  doi = {10.1063/5.0080809}
}

Single-stage gradient-based stellarator coil design: stochastic optimization

F Wechsung, A Giuliani, M Landreman, A Cerfon, and G Stadler

Nucl. Fusion 62, 076034 (2022)

arXiv version journal version bibtex

@article{Wechsung,
  author = {Wechsung, F and Giuliani, A and Landreman, M and Cerfon, A and Stadler, G},
  title = {Single-stage gradient-based stellarator coil design: stochastic optimization},
  journal = {Nucl. Fusion},
  year = {2022},
  volume = {62},
  pages = {076034},
  doi = {10.1088/1741-4326/ac45f3}
}

Single-stage gradient-based stellarator coil design: Optimization for near-axis quasi-symmetry

A Giuliani, F Wechsung, A Cerfon, G Stadler, and M Landreman

J. Comp. Phys. 459, 111147 (2022)

arXiv version journal version bibtex

@article{pyplasmaopt,
  author = {Giuliani, A and Wechsung, F and Cerfon, A and Stadler, G and Landreman, M},
  title = {Single-stage gradient-based stellarator coil design: Optimization for near-axis quasi-symmetry},
  year = {2022},
  journal = {J. Comp. Phys.},
  volume = {459},
  pages = {111147},
  doi = {10.1016/j.jcp.2022.111147}
}

2021

SIMSOPT: A flexible framework for stellarator optimization

M Landreman, B Medasani, F Wechsung, A Giuliani, R Jorge, and C Zhu

J. Open Source Software 6, 3525 (2021)

journal version bibtex

@article{simsopt,
  author = {Landreman, M and Medasani, B and Wechsung, F and Giuliani, A and Jorge, R and Zhu, C},
  title = {SIMSOPT: A flexible framework for stellarator optimization},
  journal = {J. Open Source Software},
  year = {2021},
  volume = {6},
  pages = {3525},
  doi = {10.21105/joss.03525}
}

Stellarator optimization for good magnetic surfaces at the same time as quasisymmetry

M Landreman, B Medasani, and C Zhu

Phys. Plasmas 28, 092505 (2021)

arXiv version journal version bibtex

@article{combined_vmec_spec,
  author = {Landreman, M and Medasani, B and Zhu, C},
  title = {Stellarator optimization for good magnetic surfaces at the same time as quasisymmetry},
  journal = {Phys. Plasmas},
  year = {2021},
  volume = {28},
  pages = {092505},
  doi = {10.1063/5.0061665}
}

Modeling of energetic particle transport in optimized stellarators

A Bader, D Anderson, M Drevlak, B Faber, C Hegna, S Henneberg, M Landreman, J Schmitt, and A Ware

Nucl. Fusion 61, 116060 (2021)

arXiv version journal version bibtex

@article{Bader2021,
  author = {Bader, A and Anderson, D and Drevlak, M and Faber, B and Hegna, C and Henneberg, S and Landreman, M and Schmitt, J and Ware, A},
  journal = {Nucl. Fusion},
  title = {Modeling of energetic particle transport in optimized stellarators},
  year = {2021},
  volume = {61},
  pages = {116060},
  doi = {10.1088/1741-4326/ac2991}
}

A neoclassically optimized compact stellarator with four planar coils

G Yu, Z Feng, P Jiang, N Pomphrey, M Landreman, and G Fu

Phys. Plasmas 28, 092501 (2021)

arXiv version journal version bibtex

@article{ZCS,
  author = {Yu, G and Feng, Z and Jiang, P and Pomphrey, N and Landreman, M and Fu, G},
  journal = {Phys. Plasmas},
  title = {A neoclassically optimized compact stellarator with four planar coils},
  year = {2021},
  volume = {28},
  pages = {092501},
  doi = {10.1063/5.0057834}
}

Ion-temperature-gradient stability near the magnetic axis of quasisymmetric stellarators

R Jorge, and M Landreman

Plasma Phys. Controlled Fusion 63, 074002 (2021)

arXiv version journal version bibtex

@article{JorgeITG,
  author = {Jorge, R and Landreman, M},
  journal = {Plasma Phys. Controlled Fusion},
  volume = {63},
  pages = {074002},
  title = {Ion-temperature-gradient stability near the magnetic axis of quasisymmetric stellarators},
  year = {2021},
  doi = {10.1088/1361-6587/abfdd4}
}

An adjoint method for determining the sensitivity of island size to magnetic field variations

A Geraldini, M Landreman, and E Paul

J. Plasma Phys. 87, 905870302 (2021)

arXiv version journal version bibtex

@article{Alessandro,
  author = {Geraldini, A and Landreman, M and Paul, E},
  journal = {J. Plasma Phys.},
  title = {An adjoint method for determining the sensitivity of island size to magnetic field variations},
  year = {2021},
  volume = {87},
  pages = {905870302},
  doi = {10.1017/S0022377821000428}
}

Calculation of permanent magnet arrangements for stellarators: A linear least-squares method

M Landreman, and C Zhu

Plasma Phys. Controlled Fusion 63, 035001 (2021)

arXiv version journal version bibtex

@article{REGCOILPM,
  author = {Landreman, M and Zhu, C},
  journal = {Plasma Phys. Controlled Fusion},
  title = {Calculation of permanent magnet arrangements for stellarators: A linear least-squares method},
  year = {2021},
  volume = {63},
  pages = {035001},
  doi = {10.1088/1361-6587/abd13d}
}

Figures of merit for stellarators near the magnetic axis

M Landreman

J. Plasma Phys. 87, 905870112 (2021)

arXiv version journal version bibtex

@article{figuresOfMerit,
  author = {Landreman, M},
  title = {Figures of merit for stellarators near the magnetic axis},
  journal = {J. Plasma Phys.},
  year = {2021},
  volume = {87},
  pages = {905870112},
  doi = {10.1017/S0022377820001658}
}

Gradient-based optimization of 3D MHD equilibria

E J Paul, M Landreman, and T Antonsen

J. Plasma Phys. 87, 905870214 (2021)

arXiv version journal version bibtex

@article{PaulGradientBasedOptimization,
  author = {Paul, E J and Landreman, M and Antonsen, T},
  title = {Gradient-based optimization of 3D MHD equilibria},
  journal = {J. Plasma Phys.},
  year = {2021},
  volume = {87},
  pages = {905870214},
  doi = {10.1017/S0022377821000283}
}

Heat pulse propagation and anomalous electron heat transport measurements on the optimized stellarator W7-X

G Weir, P Xanthopoulos, M Hirsch, U Höfel, T Stange, N Pablant, O Grulke, S Äkäslompolo, J Alcuson, S Bozhenkov, M Beurskens, A Dinklage, G Fuchert, J Geiger, M Landreman, A Langenberg, S Lazerson, N Marushchenko, E Pasch, J Schilling, E Scott, Y Turkin, and T Klinger

Nucl. Fusion 61, 056001 (2021)

journal version bibtex

@article{Weir,
  author = {Weir, G and Xanthopoulos, P and Hirsch, M and H\"{o}fel, U and Stange, T and Pablant, N and Grulke, O and \"{A}k\"{a}slompolo, S and Alcuson, J and Bozhenkov, S and Beurskens, M and Dinklage, A and Fuchert, G and Geiger, J and Landreman, M and Langenberg, A and Lazerson, S and Marushchenko, N and Pasch, E and Schilling, J and Scott, E and Turkin, Y and Klinger, T},
  title = {Heat pulse propagation and anomalous electron heat transport measurements on the optimized stellarator {W7-X}},
  journal = {Nucl. Fusion},
  volume = {61},
  pages = {056001},
  year = {2021},
  doi = {10.1088/1741-4326/abea55}
}

The Use of Near-Axis Magnetic Fields for Stellarator Turbulence Simulations

R Jorge, and M Landreman

Plasma Phys. Controlled Fusion 63, 014001 (2021)

arXiv version journal version bibtex

@article{JorgeLandremanGK,
  author = {Jorge, R and Landreman, M},
  journal = {Plasma Phys. Controlled Fusion},
  title = {The Use of Near-Axis Magnetic Fields for Stellarator Turbulence Simulations},
  year = {2021},
  volume = {63},
  pages = {014001},
  doi = {10.1088/1361-6587/abc862}
}

2020

Magnetic well and Mercier stability of stellarators near the magnetic axis

M Landreman, and R Jorge

J. Plasma Phys. 86, 905860510 (2020)

arXiv version journal version bibtex

@article{LandremanMercier,
  author = {Landreman, M and Jorge, R},
  journal = {J. Plasma Phys.},
  title = {Magnetic well and Mercier stability of stellarators near the magnetic axis},
  year = {2020},
  volume = {86},
  pages = {905860510},
  doi = {10.1017/S002237782000121X}
}

Advancing the physics basis for quasi-helically symmetric stellarators

A Bader, B J Faber, J C Schmitt, D T Anderson, M Drevlak, J M Duff, H Frerichs, C C Hegna, T G Kruger, M Landreman, I J McKinney, L Singh, J M Schroeder, P W Terry, and A S Ware

J. Plasma Phys. 86, 905860506 (2020)

arXiv version journal version bibtex

@article{Bader2020,
  author = {Bader, A and Faber, B J and Schmitt, J C and Anderson, D T and Drevlak, M and Duff, J M and Frerichs, H and Hegna, C C and Kruger, T G and Landreman, M and McKinney, I J and Singh, L and Schroeder, J M and Terry, P W and Ware, A S},
  title = {{Advancing the physics basis for  quasi-helically symmetric stellarators}},
  year = {2020},
  journal = {J. Plasma Phys.},
  volume = {86},
  pages = {905860506},
  doi = {10.1017/S0022377820000963}
}

Construction of Quasisymmetric Stellarators Using a Direct Coordinate Approach

R Jorge, W Sengupta, and M Landreman

Nucl. Fusion 60, 076021 (2020)

arXiv version journal version bibtex

@article{Jorge2020,
  author = {Jorge, R and Sengupta, W and Landreman, M},
  journal = {Nucl. Fusion},
  title = {{Construction of Quasisymmetric Stellarators Using a Direct Coordinate Approach}},
  year = {2020},
  volume = {60},
  pages = {076021},
  doi = {10.1088/1741-4326/ab90ca}
}

Impurity temperature screening in stellarators close to quasisymmetry

M F Martin, and M Landreman

J. Plasma Phys. 86, 905860317 (2020)

arXiv version journal version bibtex

@article{Martin2020,
  author = {Martin, M F and Landreman, M},
  journal = {J. Plasma Phys.},
  title = {{Impurity temperature screening in stellarators close to quasisymmetry}},
  year = {2020},
  volume = {86},
  pages = {905860317},
  doi = {10.1017/S0022377820000574}
}

Adjoint approach to calculating shape gradients for 3D magnetic confinement equlibria. II: Applications

E J Paul, T M Antonsen Jr, M Landreman, and W A Cooper

J. Plasma Phys. 86, 905860103 (2020)

arXiv version journal version bibtex

@article{Paul2020,
  author = {Paul, E J and Jr, T M Antonsen and Landreman, M and Cooper, W A},
  journal = {J. Plasma Phys.},
  title = {{Adjoint approach to calculating shape gradients for 3D magnetic confinement equlibria. II: Applications}},
  year = {2020},
  volume = {86},
  pages = {905860103},
  doi = {10.1017/S0022377819000916}
}

Near-Axis Expansion of Stellarator Equilibrium at Arbitrary Order in the Distance to the Axis

R Jorge, W Sengupta, and M Landreman

J. Plasma Phys. 86, 905860106 (2020)

arXiv version journal version bibtex

@article{Jorge2021,
  author = {Jorge, R and Sengupta, W and Landreman, M},
  journal = {J. Plasma Phys.},
  title = {{Near-Axis Expansion of Stellarator Equilibrium at Arbitrary Order in the Distance to the Axis}},
  year = {2020},
  volume = {86},
  pages = {905860106},
  doi = {10.1017/S0022377820000033}
}

Optimization of quasi-axisymmetric stellarators with varied elongation

Z Feng, D Gates, S Lazerson, M Landreman, N Pomphrey, and G Fu

Phys. Plasmas 27, 022502 (2020)

journal version bibtex

@article{Zhichen,
  author = {Feng, Z and Gates, D and Lazerson, S and Landreman, M and Pomphrey, N and Fu, G},
  journal = {Phys. Plasmas},
  title = {{Optimization of quasi-axisymmetric stellarators with varied elongation}},
  year = {2020},
  volume = {27},
  pages = {022502},
  doi = {10.1063/1.5127948}
}

Investigation of the neoclassical ambipolar electric field in ion-root plasmas on W7-X

N Pablant, A Langenberg, J A Alonso, J Baldzuhn, C Beidler, S Bozhenkov, R Burhenn, K Brunner, A Dinklage, G Fuchert, O Ford, D Gates, J Geiger, M Hirsch, U Hofel, Y Kazakov, J Knauer, M Krychowiak, H Laqua, M Landreman, S Lazerson, H Maassberg, O Marchuk, A Mollen, E Pasch A Pavonne, S Satake, T Schroder, H Smith, J Svensson, P Traverso, Y Turkin, J Velasco, A von Stechow, F Warmer, G Weir, R Wold, and D Zhang

Nucl. Fusion 60, 036021 (2020)

journal version bibtex

@article{Pablant2019,
  author = {Pablant, N and Langenberg, A and Alonso, J A and Baldzuhn, J and Beidler, C and Bozhenkov, S and Burhenn, R and Brunner, K and Dinklage, A and Fuchert, G and Ford, O and Gates, D and Geiger, J and Hirsch, M and Hofel, U and Kazakov, Y and Knauer, J and Krychowiak, M and Laqua, H and Landreman, M and Lazerson, S and Maassberg, H and Marchuk, O and Mollen, A and Pavonne, E Pasch A and Satake, S and Schroder, T and Smith, H and Svensson, J and Traverso, P and Turkin, Y and Velasco, J and {von Stechow}, A and Warmer, F and Weir, G and Wold, R and Zhang, D},
  journal = {Nucl. Fusion},
  volume = {60},
  pages = {036021},
  title = {{Investigation of the neoclassical ambipolar electric field in ion-root plasmas on W7-X}},
  year = {2020},
  doi = {10.1088/1741-4326/ab6ea8}
}

2019

Constructing stellarators with quasisymmetry to high order

M Landreman, and W Sengupta

J. Plasma Phys. 85, 815850601 (2019)

arXiv version journal version bibtex

@article{r2GarrenBoozer,
  author = {Landreman, M and Sengupta, W},
  journal = {J. Plasma Phys.},
  title = {{Constructing stellarators with quasisymmetry to high order}},
  volume = {85},
  pages = {815850601},
  year = {2019},
  doi = {10.1017/S0022377819000783}
}

Direct construction of optimized stellarator shapes. III. Omnigenity near the magnetic axis

G G Plunk, M Landreman, and P Helander

J. Plasma Phys. 85, 905850602 (2019)

arXiv version journal version bibtex

@article{PaperIII,
  author = {Plunk, G G and Landreman, M and Helander, P},
  journal = {J. Plasma Phys.},
  volume = {85},
  title = {{Direct construction of optimized stellarator shapes. III. Omnigenity near the magnetic axis}},
  year = {2019},
  pages = {905850602},
  doi = {10.1017/S002237781900062X}
}

An adjoint method for neoclassical stellarator optimization

E J Paul, I Abel, M Landreman, and W Dorland

J. Plasma Phys. 85, 795850501 (2019)

arXiv version journal version bibtex

@article{Paul2019,
  author = {Paul, E J and Abel, I and Landreman, M and Dorland, W},
  journal = {J. Plasma Phys.},
  title = {{An adjoint method for neoclassical stellarator optimization}},
  volume = {85},
  pages = {795850501},
  year = {2019},
  doi = {10.1017/S0022377819000527},
}

Optimized quasisymmetric stellarators are consistent with the Garren-Boozer construction

M Landreman

Plasma Phys. Controlled Fusion 61, 075001 (2019)

arXiv version journal version bibtex

@article{GarrenBoozerConsistency,
  author = {Landreman, M},
  journal = {Plasma Phys. Controlled Fusion},
  title = {{Optimized quasisymmetric stellarators are consistent with the Garren-Boozer construction}},
  volume = {61},
  pages = {075001},
  year = {2019},
  doi = {10.1088/1361-6587/ab19f6},
}

Adjoint approach to calculating shape gradients for 3D magnetic confinement equilibria

T M Antonsen Jr, E J Paul, and M Landreman

J. Plasma Phys. 85, 905850207 (2019)

arXiv version journal version bibtex

@article{Antonsen2019,
  author = {{Antonsen Jr}, T M and Paul, E J and Landreman, M},
  journal = {J. Plasma Phys.},
  title = {{Adjoint approach to calculating shape gradients for 3D magnetic confinement equilibria}},
  volume = {85},
  pages = {905850207},
  year = {2019},
  doi = {10.1017/S0022377819000254},
}

Direct construction of optimized stellarator shapes. II. Numerical quasisymmetric solutions

M Landreman, W Sengupta, and G G Plunk

J. Plasma Phys. 85, 905850103 (2019)

arXiv version journal version bibtex

@article{PaperII,
  author = {Landreman, M and Sengupta, W and Plunk, G G},
  journal = {J. Plasma Phys.},
  title = {{Direct construction of optimized stellarator shapes. II. Numerical quasisymmetric solutions}},
  volume = {85},
  pages = {905850103},
  year = {2019},
  doi = {10.1017/S0022377818001344}
}

2018

Direct construction of optimized stellarator shapes. I. Theory in cylindrical coordinates

M Landreman, and W Sengupta

J. Plasma Phys. 84, 905840616 (2018)

arXiv version journal version bibtex

@article{PaperI,
  author = {Landreman, M and Sengupta, W},
  journal = {J. Plasma Phys.},
  title = {{Direct construction of optimized stellarator shapes. I. Theory in cylindrical coordinates}},
  volume = {84},
  pages = {905840616},
  year = {2018},
  doi = {10.1017/S0022377818001289}
}

Stella: A mixed implicit-explicit, delta-f gyrokinetic code for general magnetic field configurations

M A Barnes, F I Parra, and M Landreman

J. Comp. Phys. 391, 365 (2018)

arXiv version journal version bibtex

@article{stella,
  author = {Barnes, M A and Parra, F I and Landreman, M},
  journal = {J. Comp. Phys.},
  volume = {391},
  pages = {365},
  year = {2018},
  doi = {10.1016/j.jcp.2019.01.025},
}

On-surface potential and radial electric field variations in electron root stellarator plasmas

J M Garcia-Regana, T Estrada, I Calvo, J L Velasco, J A Alonso, D Carralero, R Kleiber, M Landreman, A Mollen, E Sanchez, C Slaby, the TJ-II team, and the W7-X team

Plasma Phys. Controlled Fusion 60, 104002 (2018)

arXiv version journal version bibtex

@article{GarciaRegana2018,
  author = {{Garcia-Regana}, J M and Estrada, T and Calvo, I and Velasco, J L and Alonso, J A and Carralero, D and Kleiber, R and Landreman, M and Mollen, A and Sanchez, E and Slaby, C and {the TJ-II team} and {the W7-X team}},
  journal = {Plasma Phys. Controlled Fusion},
  title = {{On-surface potential and radial electric field variations in electron root stellarator plasmas}},
  volume = {60},
  pages = {104002},
  year = {2018},
  doi = {10.1088/1361-6587/aad795}
}

The Parallel Boundary Condition for Turbulence Simulations in Low Magnetic Shear Devices

M F Martin, M Landreman, P Xanthopoulos, N R Mandell, and W Dorland

Plasma Phys. Controlled Fusion 60, 095008 (2018)

arXiv version journal version bibtex

@article{Martin2018,
  author = {Martin, M F and Landreman, M and Xanthopoulos, P and Mandell, N R and Dorland, W},
  journal = {Plasma Phys. Controlled Fusion},
  title = {The Parallel Boundary Condition for Turbulence Simulations in Low Magnetic Shear Devices},
  volume = {60},
  pages = {095008},
  year = {2018},
  doi = {10.1088/1361-6587/aad38a}
}

Flux-surface variations of the electrostatic potential in stellarators: impact on the radial electric field and neoclassical impurity transport

A Mollen, M Landreman, H M Smith, J M Garcia-Regana, and M Nunami

Plasma Phys. Controlled Fusion 60, 084001 (2018)

journal version bibtex

@article{Mollen2018,
  author = {Mollen, A and Landreman, M and Smith, H M and {Garcia-Regana}, J M and Nunami, M},
  journal = {Plasma Phys. Controlled Fusion},
  title = {Flux-surface variations of the electrostatic potential in stellarators: impact on the radial electric field and neoclassical impurity transport},
  volume = {60},
  pages = {084001},
  year = {2018},
  doi = {10.1088/1361-6587/aac700}
}

Computing local sensitivity and tolerances for stellarator physics properties using shape gradients

M Landreman, and E J Paul

Nucl. Fusion 58, 076023 (2018)

arXiv version journal version bibtex

@article{LandremanPaul2018,
  author = {Landreman, M and Paul, E J},
  journal = {Nucl. Fusion},
  title = {Computing local sensitivity and tolerances for stellarator physics properties using shape gradients},
  volume = {58},
  pages = {076023},
  year = {2018},
  doi = {10.1088/1741-4326/aac197}
}

An adjoint method for gradient-based optimization of stellarator coil shapes

E J Paul, M Landreman, A Bader, and W Dorland

Nucl. Fusion 58, 076015 (2018)

arXiv version journal version bibtex

@article{Paul2018,
  author = {Paul, E J and Landreman, M and Bader, A and Dorland, W},
  journal = {Nucl. Fusion},
  title = {{An adjoint method for gradient-based optimization of stellarator coil shapes}},
  volume = {58},
  pages = {076015},
  year = {2018},
  doi = {10.1088/1741-4326/aac1c7},
}

Optimized up-down asymmetry to drive fast intrinsic rotation in tokamaks

J Ball, F I Parra, M Landreman, and M Barnes

Nucl. Fusion 58, 026003 (2018)

arXiv version journal version bibtex

@article{Ball2018,
  author = {Ball, J and Parra, F I and Landreman, M and Barnes, M},
  journal = {Nucl. Fusion},
  title = {Optimized up-down asymmetry to drive fast intrinsic rotation in tokamaks},
  volume = {58},
  pages = {026003},
  year = {2018},
  doi = {10.1088/1741-4326/aa9a50}
}

Stellarator Research Opportunities, A report of the National Stellarator Coordinating Committee

D A Gates, D Anderson, S Anderson, M Zarnstorff, D A Spong, H Weitzner, G H Neilson, D N Ruzic, D Andruczyk, J H Harris, H Mynick, C Hegna, O Schmitz, J N Talmadge, D Curreli, D Maurer, A Boozer, S Knowlton, J P Allain, D Ennis, G Wurden, A Reiman, J D Lore, M Landreman, J Freidberg, S R Hudson, M Porkolab, D Demers, J Terry, E Edlund, S Lazerson, N Pablant, R Fonck, F Volpe, J Canik, R Granetz, A Ware, J D Hanson, S Kumar, C Deng, K Likin, A Cerfon, A Ram, A Hassam, S Prager, C Paz-Soldan, M J Pueschel, I Joseph, and A Glasser

J. Fusion Energy 37, 51 (2018)

journal version bibtex

@article{stellcon,
  author = {Gates, D A and Anderson, D and Anderson, S and Zarnstorff, M and Spong, D A and Weitzner, H and Neilson, G H and Ruzic, D N and Andruczyk, D and Harris, J H and Mynick, H and Hegna, C and Schmitz, O and Talmadge, J N and Curreli, D and Maurer, D and Boozer, A and Knowlton, S and Allain, J P and Ennis, D and Wurden, G and Reiman, A and Lore, J D and Landreman, M and Freidberg, J and Hudson, S R and Porkolab, M and Demers, D and Terry, J and Edlund, E and Lazerson, S and Pablant, N and Fonck, R and Volpe, F and Canik, J and Granetz, R and Ware, A and Hanson, J D and Kumar, S and Deng, C and Likin, K and Cerfon, A and Ram, A and Hassam, A and Prager, S and {Paz-Soldan}, C and Pueschel, M J and Joseph, I and Glasser, A},
  journal = {J. Fusion Energy},
  title = {Stellarator Research Opportunities, A report of the National Stellarator Coordinating Committee},
  year = {2018},
  volume = {37},
  pages = {51},
  doi = {10.1007/s10894-018-0152-7}
}

Core Radial Electric Field and Transport in Wendelstein 7-X Plasmas

N Pablant, A Langenberg, A Alonso, C Beidler, M Bitter, S Bozhenkov, R Burhenn, M Beurskens, L F Delgado-Aparicio, A Dinklage, G Fuchert, D Gates, J Geiger, K Hill, U Hofel, M Hirsch, J Knauer, A Kramer-Flecken, M Landreman, S Lazerson, H Maassberg, O Marchuk, S Massidda, G H Neilson, E Pasch, S Satake, J Svennson, P Traverso, Y Turkin, P Valson, J Velasco, G Weir, T Windisch, R Wolf, M Yokoyama, D Zhang, and the W7-X Team

Phys. Plasmas 25, 022508 (2018)

journal version bibtex

@article{pablant2018,
  author = {Pablant, N and Langenberg, A and Alonso, A and Beidler, C and Bitter, M and Bozhenkov, S and Burhenn, R and Beurskens, M and {Delgado-Aparicio}, L F and Dinklage, A and Fuchert, G and Gates, D and Geiger, J and Hill, K and Hofel, U and Hirsch, M and Knauer, J and {Kramer-Flecken}, A and Landreman, M and Lazerson, S and Maassberg, H and Marchuk, O and Massidda, S and Neilson, G H and Pasch, E and Satake, S and Svennson, J and Traverso, P and Turkin, Y and Valson, P and Velasco, J and Weir, G and Windisch, T and Wolf, R and Yokoyama, M and Zhang, D and {the W7-X Team}},
  journal = {Phys. Plasmas},
  title = {Core Radial Electric Field and Transport in Wendelstein 7-X Plasmas},
  year = {2018},
  volume = {25},
  pages = {022508},
  doi = {10.1063/1.4999842}
}

Laguerre-Hermite Pseudo-Spectral Velocity Formulation of Gyrokinetics

N R Mandell, W Dorland, and M Landreman

J. Plasma Phys. 84, 905840108 (2018)

arXiv version journal version bibtex

@article{Mandell2018,
  author = {Mandell, N R and Dorland, W and Landreman, M},
  title = {Laguerre-Hermite Pseudo-Spectral Velocity Formulation of Gyrokinetics},
  year = {2018},
  journal = {J. Plasma Phys.},
  volume = {84},
  pages = {905840108},
  doi = {10.1017/S0022377818000041}
}

2017

An improved current potential method for fast computation of stellarator coil shapes

M Landreman

Nucl. Fusion 57, 046003 (2017)

arXiv version journal version bibtex

@article{REGCOIL,
  author = {Landreman, M},
  title = {An improved current potential method for fast computation of stellarator coil shapes},
  journal = {Nucl. Fusion},
  year = {2017},
  volume = {57},
  pages = {046003},
  doi = {10.1088/1741-4326/aa57d4},
}

Recent advances in stellarator optimization

D Gates, A Boozer, T Brown, J Breslau, D Curreli, M Landreman, S Lazerson, J Lore, H Mynick, G H Neilson, N Promphrey, P Xanthopoulos, and A Zolfaghari

Nucl. Fusion 57, 126064 (2017)

journal version bibtex

@article{Gates2017,
  author = {Gates, D and Boozer, A and Brown, T and Breslau, J and Curreli, D and Landreman, M and Lazerson, S and Lore, J and Mynick, H and Neilson, G H and Promphrey, N and Xanthopoulos, P and Zolfaghari, A},
  journal = {Nucl. Fusion},
  title = {Recent advances in stellarator optimization},
  volume = {57},
  pages = {126064},
  year = {2017},
  doi = {10.1088/1741-4326/aa8ba0}
}

Rotation and neoclassical ripple transport in ITER

E J Paul, M Landreman, F M Poli, D A Spong, H M Smith, and W Dorland

Nucl. Fusion 57, 116044 (2017)

journal version bibtex

@article{Paul2017,
  author = {Paul, E J and Landreman, M and Poli, F M and Spong, D A and Smith, H M and Dorland, W},
  journal = {Nucl. Fusion},
  title = {Rotation and neoclassical ripple transport in ITER},
  volume = {57},
  pages = {116044},
  year = {2017},
  doi = {10.1088/1741-4326/aa7fa4}
}

Major results from the first plasma campaign of the Wendelstein 7-X stellarator

R C Wolf, A Ali, A Alonso, J Baldzuhn, C Beidler, M Beurskens, C Biedermann, H-S Bosch, S Bozhenkov, R Brakel, A Dinklage, Y Feng, G Fuchert, J Geiger, O Grulke, P Helander, M Hirsch, O Hofel, M Jakubowski, J Knauer, G Kocsis, R Konig, P Kornejew, A Kramer-Flecken, M Krychowiak, M Landreman, A Langenberg, H P Laqua, S Lazerson, H Maassberg, S Marsen, M Marushchenko, D Moseev, H Niemann, N Pablant, E Pasch, K Rahbarnia, G Schlisio, T Stange, T Sunn Pedersen, J Svensson, T Szepesi, H Trimino Mora, Y Turkin, T Wauters, G Weir, U Wenzel, T Windisch, G Wurden, D Zhang, and et al

Nucl. Fusion 59, 014018 (2017)

journal version bibtex

@article{Wolf2017,
  author = {Wolf, R C and Ali, A and Alonso, A and Baldzuhn, J and Beidler, C and Beurskens, M and Biedermann, C and Bosch, {H-S} and Bozhenkov, S and Brakel, R and Dinklage, A and Feng, Y and Fuchert, G and Geiger, J and Grulke, O and Helander, P and Hirsch, M and Hofel, O and Jakubowski, M and Knauer, J and Kocsis, G and Konig, R and Kornejew, P and {Kramer-Flecken}, A and Krychowiak, M and Landreman, M and Langenberg, A and Laqua, H P and Lazerson, S and Maassberg, H and Marsen, S and Marushchenko, M and Moseev, D and Niemann, H and Pablant, N and Pasch, E and Rahbarnia, K and Schlisio, G and Stange, T and Pedersen, T Sunn and Svensson, J and Szepesi, T and Mora, H Trimino and Turkin, Y and Wauters, T and Weir, G and Wenzel, U and Windisch, T and Wurden, G and Zhang, D and {et al}},
  journal = {Nucl. Fusion},
  title = {Major results from the first plasma campaign of the Wendelstein 7-X stellarator},
  volume = {59},
  pages = {014018},
  year = {2017},
  doi = {10.1088/1741-4326/aa770d}
}

Performance and properties of the first plasmas of Wendelstein 7-X

T Klinger, A Alonso, S Bozhenkov, R Burhenn, A Dinklage, G Fuchert, J Geiger, O Grulke, A Langenberg, M Hirsch, G Kocsis, J Knauer, A Kramer-Flecken, H Laqua, S Lazerson, M Landreman, H Maassberg, S Marsen, M Otte, N Pablant, E Pasch, K Rahbarnia, T Stange, T Szepesi, H Thomsen, P Traverso, J L Velasco, T Wauters, G Weir, T Windisch, and the Wendelstein 7-X Team

Plasma Phys. Controlled Fusion 59, 014018 (2017)

journal version bibtex

@article{Klinger2017,
  author = {Klinger, T and Alonso, A and Bozhenkov, S and Burhenn, R and Dinklage, A and Fuchert, G and Geiger, J and Grulke, O and Langenberg, A and Hirsch, M and Kocsis, G and Knauer, J and {Kramer-Flecken}, A and Laqua, H and Lazerson, S and Landreman, M and Maassberg, H and Marsen, S and Otte, M and Pablant, N and Pasch, E and Rahbarnia, K and Stange, T and Szepesi, T and Thomsen, H and Traverso, P and Velasco, J L and Wauters, T and Weir, G and Windisch, T and {the Wendelstein 7-X Team}},
  journal = {Plasma Phys. Controlled Fusion},
  title = {{Performance and properties of the first plasmas of Wendelstein 7-X}},
  volume = {59},
  pages = {014018},
  year = {2017},
  doi = {10.1088/0741-3335/59/1/014018}
}

Electrostatic potential variation on the flux surface and its impact on impurity transport

J Garcia-Regana, C Beidler, R Kleiber, P Helander, A Mollen, J A Alonso, M Landreman, H Maassberg, H Smith, Y Turkin, and J L Velasco

Nucl. Fusion 57, 056004 (2017)

bibtex

@article{GarciaRegana2017,
  author = {Garcia-Regana, J and Beidler, C and Kleiber, R and Helander, P and Mollen, A and Alonso, J A and Landreman, M and Maassberg, H and Smith, H and Turkin, Y and Velasco, J L},
  journal = {Nucl. Fusion},
  title = {Electrostatic potential variation on the flux surface and its impact on impurity transport},
  year = {2017},
  volume = {57},
  pages = {056004}
}

NORSE: A solver for the relativistic non-linear Fokker-Planck equation for electrons in a homogeneous plasma

A Stahl, M Landreman, O Embreus, and T Fulop

Comp. Phys. Comm. 212, 269 (2017)

arXiv version journal version bibtex

@article{Stahl2017,
  author = {Stahl, A and Landreman, M and Embreus, O and Fulop, T},
  journal = {Comp. Phys. Comm.},
  title = {{NORSE:} A solver for the relativistic non-linear Fokker-Planck equation for electrons in a homogeneous plasma},
  year = {2017},
  volume = {212},
  pages = {269},
  doi = {10.1016/j.cpc.2016.10.024},
}

2016

Runaway-electron formation and electron slide-away in an ITER post-disruption scenario

A Stahl, O Embreus, M Landreman, G Papp, and T Fulop

J. Phys. Conference Ser. 775, 012013 (2016)

arXiv version bibtex

@article{Stahl2016,
  author = {Stahl, A and Embreus, O and Landreman, M and Papp, G and Fulop, T},
  journal = {J. Phys. Conference Ser.},
  title = {Runaway-electron formation and electron slide-away in an ITER post-disruption scenario},
  year = {2016},
  volume = {775},
  pages = {012013},
}

Efficient magnetic fields for supporting toroidal plasmas

M Landreman, and A H Boozer

Phys. Plasmas 23, 032506 (2016)

arXiv version journal version bibtex

@article{Landreman2016,
  author = {Landreman, M and Boozer, A H},
  journal = {Phys. Plasmas},
  year = {2016},
  volume = {23},
  pages = {032506},
  doi = {10.1063/1.4943201}
}

Investigation of the core radial electric field in Wendelsetin 7-X plasmas

N A Pablant, A Dinklage, M Landreman, A Langenberg, A Alonso, C D Beidler, M Beurskens, M Bitter, S Bozhenkov, R Burhenn, L-F Delgado-Aparicio, G Fuchert, D A Gates, J Geiger, K W Hill, U Hoefel, M Hirsch, J Knauer, A Kramer-Flecken, S Lazerson, H Maassberg, O Marchuk, N B Marushchenko, D R Mikkelsen, E Pasch, S Satake, H Smith, J Svensson, P Traverso, Y Turkin, P Valson, J L Velasco, G Weir, T Windisch, R C Wolf, M Yokoyama, D Zhang, and the W7-X team

43rd European Physical Society Conference on Plasma Physics, Leuven 23, 032506 (2016)

[journal version] bibtex

@article{Pablant2016,
  author = {Pablant, N A and Dinklage, A and Landreman, M and Langenberg, A and Alonso, A and Beidler, C D and Beurskens, M and Bitter, M and Bozhenkov, S and Burhenn, R and {Delgado-Aparicio}, {L-F} and Fuchert, G and Gates, D A and Geiger, J and Hill, K W and Hoefel, U and Hirsch, M and Knauer, J and {Kramer-Flecken}, A and Lazerson, S and Maassberg, H and Marchuk, O and Marushchenko, N B and Mikkelsen, D R and Pasch, E and Satake, S and Smith, H and Svensson, J and Traverso, P and Turkin, Y and Valson, P and Velasco, J L and Weir, G and Windisch, T and Wolf, R C and Yokoyama, M and Zhang, D and {the W7-X team}},
  journal = {43rd European Physical Society Conference on Plasma Physics, Leuven},
  title = {Investigation of the core radial electric field in Wendelsetin 7-X plasmas},
  year = {2016},
}

Core confinement in Wendelstein 7-X limiter plasmas

A Dinklage, A Alonso, J Baldzuhn, C D Beidler, C Biedermann, B Blackwell, S Bozhenkov, R Brakel, B Buttenschon, Y Feng, G Fuchert, J Geiger, P Helander, M Hirsch, U Hoefel, J Knauer, A Kramer-Flecken, A Langenberg, H P Laqua, M Landreman, H Maassberg, N A Pablant, E Pasch, K Rahbarnia, L Rudischhauser, T Stange, L Stephey, H Trimino-Mora, Yu Turkin, J-L Velasco, G Wurden, D Zhang, T Andreeva, M Beurskens, E Blanco, H-S Bosch, R Burhenn, A Cappa, A Czarnecka, M Dostal, P Drews, M Endler, T Estrada, T Fornal, O Grulke, D Hartmann, J H Harris, M Jakubowski, T Klinger, S Klose, G Kocsis, R Konig, P Kornejew, N Krawczyk, M Krychowiak, M Kubkowska, I Kiazek, S Lazerson, Y Liang, S Liu, O Marchuk, S Marsen, N Marushchenko, V Moncada, D Moseev, D Naujoks, H Niemann, M Otte, T S Pedersen, F Pisano, K Risse, T Rummel, O Schmitz, S Satake, H Smith, T Schroder, T Szepesi, H Thomsen, P Traverso, M Tsuchiya, P Valson, N Wang, T Wauters, G Weir, R Wolf, M Yokoyama, and the W7-X Team

43rd European Physical Society Conference on Plasma Physics, Leuven 23, 032506 (2016)

[journal version] bibtex

@article{Dinklage2016,
  author = {Dinklage, A and Alonso, A and Baldzuhn, J and Beidler, C D and Biedermann, C and Blackwell, B and Bozhenkov, S and Brakel, R and Buttenschon, B and Feng, Y and Fuchert, G and Geiger, J and Helander, P and Hirsch, M and Hoefel, U and Knauer, J and {Kramer-Flecken}, A and Langenberg, A and Laqua, H P and Landreman, M and Maassberg, H and Pablant, N A and Pasch, E and Rahbarnia, K and Rudischhauser, L and Stange, T and Stephey, L and {Trimino-Mora}, H and Turkin, Yu and Velasco, {J-L} and Wurden, G and Zhang, D and Andreeva, T and Beurskens, M and Blanco, E and Bosch, {H-S} and Burhenn, R and Cappa, A and Czarnecka, A and Dostal, M and Drews, P and Endler, M and Estrada, T and Fornal, T and Grulke, O and Hartmann, D and Harris, J H and Jakubowski, M and Klinger, T and Klose, S and Kocsis, G and Konig, R and Kornejew, P and Krawczyk, N and Krychowiak, M and Kubkowska, M and Kiazek, I and Lazerson, S and Liang, Y and Liu, S and Marchuk, O and Marsen, S and Marushchenko, N and Moncada, V and Moseev, D and Naujoks, D and Niemann, H and Otte, M and Pedersen, T S and Pisano, F and Risse, K and Rummel, T and Schmitz, O and Satake, S and Smith, H and Schroder, T and Szepesi, T and Thomsen, H and Traverso, P and Tsuchiya, M and Valson, P and Wang, N and Wauters, T and Weir, G and Wolf, R and Yokoyama, M and {the W7-X Team}},
  journal = {43rd European Physical Society Conference on Plasma Physics, Leuven},
  title = {Core confinement in Wendelstein 7-X limiter plasmas},
  year = {2016},
}

Microturbulence-induced modifications to the alpha particle distribution

G J Wilkie, I G Abel, M Landreman, and W Dorland

43rd European Physical Society Conference on Plasma Physics, Leuven 23, 032506 (2016)

[journal version] bibtex

@article{Wilkie2016EPS,
  author = {Wilkie, G J and Abel, I G and Landreman, M and Dorland, W},
  journal = {43rd European Physical Society Conference on Plasma Physics, Leuven},
  title = {Microturbulence-induced modifications to the alpha particle distribution},
  year = {2016},
}

Neoclassical transport with non-trace impurities in density pedestals

S Buller, I Pusztai, and M Landreman

43rd European Physical Society Conference on Plasma Physics, Leuven 23, 032506 (2016)

[journal version] bibtex

@article{Buller2016,
  author = {Buller, S and Pusztai, I and Landreman, M},
  journal = {43rd European Physical Society Conference on Plasma Physics, Leuven},
  title = {Neoclassical transport with non-trace impurities in density pedestals},
  year = {2016},
}

Transport and deceleration of fusion products in microturbulence

G Wilkie, I Abel, M Landreman, and W Dorland

Phys. Plasmas 23, 060703 (2016)

journal version bibtex

@article{Wilkie2016,
  author = {Wilkie, G and Abel, I and Landreman, M and Dorland, W},
  journal = {Phys. Plasmas},
  title = {Transport and deceleration of fusion products in microturbulence},
  year = {2016},
  volume = {23},
  pages = {060703},
  doi = {10.1063/1.4953420}
}

Global effects on neoclassical transport in the pedestal with impurities

I Pusztai, S Buller, and M Landreman

Plasma Phys. Controlled Fusion 58, 085001 (2016)

journal version bibtex

@article{Pusztai2016,
  author = {Pusztai, I and Buller, S and Landreman, M},
  journal = {Plasma Phys. Controlled Fusion},
  title = {Global effects on neoclassical transport in the pedestal with impurities},
  year = {2016},
  volume = {58},
  pages = {085001},
  doi = {10.1088/0741-3335/58/8/085001}
}

Parallel impurity dynamics in the TJ-II stellarator

J Alonso, I Calvo, T Estrada, J Fontdecaba, J Garcia-Regana, J Geiger, M Landreman, K McCarthy, F Medina, B Van Milligen, M Ochando, F Parra, and J Velasco

Plasma Phys. Controlled Fusion 58, 074009 (2016)

journal version bibtex

@article{Alonso2016,
  author = {Alonso, J and Calvo, I and Estrada, T and Fontdecaba, J and {Garcia-Regana}, J and Geiger, J and Landreman, M and McCarthy, K and Medina, F and Milligen, B Van and Ochando, M and Parra, F and Velasco, J},
  journal = {Plasma Phys. Controlled Fusion},
  title = {Parallel impurity dynamics in the TJ-II stellarator},
  year = {2016},
  volume = {58},
  pages = {074009},
  doi = {10.1088/0741-3335/58/7/074009}
}

Kinetic modelling of runaway electrons in dynamic scenarios

A Stahl, O Embreus, G Papp, M Landreman, and T Fulop

Nucl. Fusion 56, 112009 (2016)

journal version bibtex

@article{Stahl2016dynamic,
  author = {Stahl, A and Embreus, O and Papp, G and Landreman, M and Fulop, T},
  journal = {Nucl. Fusion},
  title = {Kinetic modelling of runaway electrons in dynamic scenarios},
  year = {2016},
  volume = {56},
  pages = {112009},
  doi = {10.1088/0029-5515/56/11/112009}
}

2015

Impurities in a non-axisymmetric plasma: Transport and effect on bootstrap current

A Mollen, M Landreman, H M Smith, S Braun, and P Helander

Phys. Plasmas 22, 112508 (2015)

journal version bibtex

@article{Mollen2015,
  author = {Mollen, A and Landreman, M and Smith, H M and Braun, S and Helander, P},
  journal = {Phys. Plasmas},
  title = {Impurities in a non-axisymmetric plasma: Transport and effect on bootstrap current},
  year = {2015},
  volume = {22},
  pages = {112508},
  doi = {10.1063/1.4935901}
}

Universal instability for wavelengths below the ion Larmor scale

M Landreman, T M Antonsen Jr, and W Dorland

Phys. Rev. Lett. 114, 095003 (2015)

journal version bibtex

@article{Landreman2015PRL,
  author = {Landreman, M and Jr, T M Antonsen and Dorland, W},
  journal = {Phys. Rev. Lett.},
  title = {Universal instability for wavelengths below the ion Larmor scale},
  year = {2015},
  volume = {114},
  pages = {095003},
  doi = {10.1103/PhysRevLett.114.095003}
}

Generalized universal instability: Transient linear amplification and subcritical turbulence

M Landreman, G G Plunk, and W Dorland

J. Plasma Phys. 81, 905810501 (2015)

journal version bibtex

@article{Landreman2015Subcritical,
  author = {Landreman, M and Plunk, G G and Dorland, W},
  journal = {J. Plasma Phys.},
  title = {Generalized universal instability: Transient linear amplification and subcritical turbulence},
  year = {2015},
  volume = {81},
  pages = {905810501},
  doi = {10.1017/S0022377815000495}
}

Less constrained omnigeneous stellarators

F Parra, I Calvo, P Helander, and M Landreman

Nucl. Fusion 55, 033005 (2015)

journal version bibtex

@article{Parra2015,
  author = {Parra, F and Calvo, I and Helander, P and Landreman, M},
  journal = {Nucl. Fusion},
  title = {Less constrained omnigeneous stellarators},
  year = {2015},
  volume = {55},
  pages = {033005},
  doi = {10.1088/0029-5515/55/3/033005}
}

Accurate spectral numerical schemes for kinetic equations with energy diffusion

J Wilkening, A Cerfon, and M Landreman

J. Comp. Phys. 294, 58 (2015)

journal version bibtex

@article{Wilkening2015,
  author = {Wilkening, J and Cerfon, A and Landreman, M},
  journal = {J. Comp. Phys.},
  title = {Accurate spectral numerical schemes for kinetic equations with energy diffusion},
  year = {2015},
  volume = {294},
  pages = {58},
  doi = {10.1016/j.jcp.2015.03.039}
}

Poloidal asymmetries in edge transport barriers

R M Churchill, C Thelier, B Lipschultz, I H Hutchinson, M L Reinke, D Whyte, J W Hughes, P Catto, M Landreman, D Ernst, C S Chang, R Hager, A Hubbard, P Ennever, J R Walk, and the Alcator C-Mod Team

Phys. Plasmas 22, 056104 (2015)

bibtex

@article{Churchill2015a,
  author = {Churchill, R M and Thelier, C and Lipschultz, B and Hutchinson, I H and Reinke, M L and Whyte, D and Hughes, J W and Catto, P and Landreman, M and Ernst, D and Chang, C S and Hager, R and Hubbard, A and Ennever, P and Walk, J R and {the Alcator C-Mod Team}},
  journal = {Phys. Plasmas},
  title = {Poloidal asymmetries in edge transport barriers},
  year = {2015},
  volume = {22},
  pages = {056104}
}

2014

On collisional impurity transport in nonaxisymmetric plasmas

A Mollen, M Landreman, and H M Smith

J. Phys. Conf. Ser. 561, 012012 (2014)

journal version bibtex

@article{Mollen2014,
  author = {Mollen, A and Landreman, M and Smith, H M},
  journal = {J. Phys. Conf. Ser.},
  title = {On collisional impurity transport in nonaxisymmetric plasmas},
  year = {2014},
  volume = {561},
  pages = {012012},
  doi = {10.1088/1742-6596/561/1/012012}
}

Inboard and outboard radial electric field wells in the H- and I-mode pedestal of Alcator C-Mod and poloidal variations of impurity temperature

C Theiler, R M Churchill, B Lipschultz, M Landreman, D R Ernst, J W Hughes, P J Catto, F I Parra, I H Hutchinson, M L Reinke, A E Hubbard, E S Marmar, J T Terry, J R Walk, and the Alcator C-Mod Team

Nucl. Fusion 54, 083017 (2014)

journal version bibtex

@article{Thelier2014,
  author = {Theiler, C and Churchill, R M and Lipschultz, B and Landreman, M and Ernst, D R and Hughes, J W and Catto, P J and Parra, F I and Hutchinson, I H and Reinke, M L and Hubbard, A E and Marmar, E S and Terry, J T and Walk, J R and {the Alcator C-Mod Team}},
  journal = {Nucl. Fusion},
  title = {Inboard and outboard radial electric field wells in the H- and I-mode pedestal of Alcator C-Mod and poloidal variations of impurity temperature},
  year = {2014},
  volume = {54},
  pages = {083017},
  doi = {10.1088/0029-5515/54/8/083017}
}

Comparison of particle trajectories and collision operators for collisional transport in nonaxisymmetric plasmas

M Landreman, H M Smith, A Mollen, and P Helander

Phys. Plasmas 21, 042503 (2014)

arXiv version journal version bibtex

@article{sfincs,
  author = {Landreman, M and Smith, H M and Mollen, A and Helander, P},
  title = {Comparison of particle trajectories and collision operators for collisional transport in nonaxisymmetric plasmas},
  journal = {Phys. Plasmas},
  year = {2014},
  volume = {21},
  pages = {042503},
  doi = {10.1063/1.4870077},
}

Radially local delta-f computation of neoclassical phenomena in a tokamak pedestal

M Landreman, F I Parra, P J Catto, D Ernst, and I Pusztai

Plasma Phys. Controlled Fusion 56, 045005 (2014)

journal version bibtex

@article{perfect,
  author = {Landreman, M and Parra, F I and Catto, P J and Ernst, D and Pusztai, I},
  journal = {Plasma Phys. Controlled Fusion},
  title = {Radially local delta-f computation of neoclassical phenomena in a tokamak pedestal},
  year = {2014},
  volume = {56},
  pages = {045005},
  doi = {10.1088/0741-3335/56/4/045005}
}

Radio frequency induced and neoclassical asymmetries and their effects on turbulent impurity transport in a tokamak

I Pusztai, M Landreman, A Mollen, Y O Kazakov, and T Fulop

Contrib. Plasma Phys. 54, 534 (2014)

journal version bibtex

@article{Pusztai2014,
  author = {Pusztai, I and Landreman, M and Mollen, A and Kazakov, Y O and Fulop, T},
  journal = {Contrib. Plasma Phys.},
  title = {Radio frequency induced and neoclassical asymmetries and their effects on turbulent impurity transport in a tokamak},
  year = {2014},
  volume = {54},
  pages = {534},
  doi = {10.1002/ctpp.201410012}
}

Compressible impurity flow in the TJ-II stellarator

J Arevalo, J A Alonso, K J McCarthy, J L Velasco, J M García-Regana, and M Landreman

Nucl. Fusion 54, 013008 (2014)

journal version bibtex

@article{Arevalo,
  author = {Arevalo, J and Alonso, J A and McCarthy, K J and Velasco, J L and {García-Regana}, J M and Landreman, M},
  journal = {Nucl. Fusion},
  title = {Compressible impurity flow in the TJ-II stellarator},
  year = {2014},
  volume = {54},
  pages = {013008},
  doi = {10.1088/0029-5515/54/1/013008}
}

Numerical calculation of the runaway electron distribution function and associated synchrotron emission

M Landreman, A Stahl, and T Fulop

Contrib. Plasma Phys. 185, 847 (2014)

journal version bibtex

  author = {Landreman, M and Stahl, A and Fulop, T},
  journal = {Contrib. Plasma Phys.},
  title = {Numerical calculation of the runaway electron distribution function and associated synchrotron emission},
  year = {2014},
  volume = {185},
  pages = {847},
  doi = {10.1016/j.cpc.2013.12.004}
}

2013

Conservation of energy and magnetic moment in neoclassical calculations for optimized stellarators

M Landreman, and P J Catto

Plasma Phys. Controlled Fusion 55, 095017 (2013)

journal version bibtex

@article{Landreman2013,
  author = {Landreman, M and Catto, P J},
  journal = {Plasma Phys. Controlled Fusion},
  title = {Conservation of energy and magnetic moment in neoclassical calculations for optimized stellarators},
  year = {2013},
  volume = {55},
  pages = {095017},
  doi = {10.1088/0741-3335/55/9/095017}
}

Synchrotron radiation from a runaway electron distribution in tokamaks

A Stahl, M Landreman, G Papp, E Hollmann, and T Fulop

Phys. Plasmas 20, 093302 (2013)

journal version bibtex

@article{Stahl2013,
  author = {Stahl, A and Landreman, M and Papp, G and Hollmann, E and Fulop, T},
  journal = {Phys. Plasmas},
  title = {Synchrotron radiation from a runaway electron distribution in tokamaks},
  year = {2013},
  volume = {20},
  pages = {093302},
  doi = {10.1063/1.4821823}
}

Ion runaway in lightning discharges

T Fulop, and M Landreman

Phys. Rev. Lett. 111, 015006 (2013)

journal version bibtex

@article{lightning,
  author = {Fulop, T and Landreman, M},
  journal = {Phys. Rev. Lett.},
  title = {Ion runaway in lightning discharges},
  year = {2013},
  volume = {111},
  pages = {015006},
  doi = {10.1103/PhysRevLett.111.015006}
}

New velocity-space discretization for continuum kinetic calculations and Fokker-Planck collisions

M Landreman, and D R Ernst

J. Comp. Phys. 243, 130 (2013)

journal version bibtex

@article{speedgrid,
  author = {Landreman, M and Ernst, D R},
  journal = {J. Comp. Phys.},
  title = {New velocity-space discretization for continuum kinetic calculations and Fokker-Planck collisions},
  year = {2013},
  volume = {243},
  pages = {130},
  doi = {10.1016/j.jcp.2013.02.041}
}

Comparison of edge turbulence imaging at two different poloidal locations in the scrape-off layer of Alcator C-Mod

S J Zweben, J L Terry, M Agostini, W M Davis, A Diallo, R A Ellis, T Golfinopoulos, O Grulke, J W Hughes, B LaBombard, M Landreman, J R Myra, D C Pace, and D P Stotler

Phys. Plasmas 20, 072503 (2013)

journal version bibtex

@article{Zweben2013,
  author = {Zweben, S J and Terry, J L and Agostini, M and Davis, W M and Diallo, A and Ellis, R A and Golfinopoulos, T and Grulke, O and Hughes, J W and LaBombard, B and Landreman, M and Myra, J R and Pace, D C and Stotler, D P},
  journal = {Phys. Plasmas},
  title = {Comparison of edge turbulence imaging at two different poloidal locations in the scrape-off layer of Alcator C-Mod},
  year = {2013},
  volume = {20},
  pages = {072503},
  doi = {10.1063/1.4813758}
}

Kinetic effects on a tokamak pedestal ion flow, ion heat transport and bootstrap current

P J Catto, F I Parra, G Kagan, J B Parker, I Pusztai, and M Landreman

Plasma Phys. Controlled Fusion 55, 045009 (2013)

journal version bibtex

@article{Catto2013,
  author = {Catto, P J and Parra, F I and Kagan, G and Parker, J B and Pusztai, I and Landreman, M},
  journal = {Plasma Phys. Controlled Fusion},
  title = {Kinetic effects on a tokamak pedestal ion flow, ion heat transport and bootstrap current},
  year = {2013},
  volume = {55},
  pages = {045009},
  doi = {10.1088/0741-3335/55/4/045009}
}

2012

Local and global Fokker-Planck neoclassical calculations showing flow and bootstrap current modification in a pedestal

M Landreman, and D R Ernst

Plasma Phys. Controlled Fusion 54, 115006 (2012)

journal version bibtex

@article{LandremanErnst2012,
  author = {Landreman, M and Ernst, D R},
  journal = {Plasma Phys. Controlled Fusion},
  title = {Local and global Fokker-Planck neoclassical calculations showing flow and bootstrap current modification in a pedestal},
  year = {2012},
  volume = {54},
  pages = {115006},
  doi = {10.1088/0741-3335/54/11/115006}
}

Omnigenity as generalized quasisymmetry

M Landreman, and P J Catto

Phys. Plasmas 19, 056103 (2012)

journal version bibtex

@article{omnigenity,
  author = {Landreman, M and Catto, P J},
  journal = {Phys. Plasmas},
  title = {Omnigenity as generalized quasisymmetry},
  year = {2012},
  volume = {19},
  pages = {056103},
  doi = {10.1063/1.3693187}
}

Neoclassical Theory of Pedestal Flows and Comparison with Alcator C-Mod Measurements

G Kagan, K D Marr, I Pusztai, M Landreman, P J Catto, and B Lipschultz

Contrib. Plasma Phys. 52, 365 (2012)

journal version bibtex

@article{Kagan2012,
  author = {Kagan, G and Marr, K D and Pusztai, I and Landreman, M and Catto, P J and Lipschultz, B},
  journal = {Contrib. Plasma Phys.},
  title = {Neoclassical Theory of Pedestal Flows and Comparison with Alcator C-Mod Measurements},
  year = {2012},
  volume = {52},
  pages = {365},
  doi = {10.1002/ctpp.201210018}
}

2011

Impurity flows and plateau-regime poloidal density variation in a tokamak pedestal

M Landreman, T Fulop, and D Guszejnov

Phys. Plasmas 18, 092507 (2011)

journal version bibtex

@article{plateauPedestal,
  author = {Landreman, M and Fulop, T and Guszejnov, D},
  journal = {Phys. Plasmas},
  title = {Impurity flows and plateau-regime poloidal density variation in a tokamak pedestal},
  year = {2011},
  volume = {18},
  pages = {092507},
  doi = {10.1063/1.3631819}
}

Electric fields and transport in optimized stellarators

M Landreman

PhD Thesis, MIT 18, 092507 (2011)

bibtex PDF

The monoenergetic approximation in stellarator neoclassical calculations

M Landreman

Plasma Phys. Controlled Fusion 53, 082003 (2011)

journal version bibtex

@article{monoenergetic,
  author = {Landreman, M},
  journal = {Plasma Phys. Controlled Fusion},
  title = {The monoenergetic approximation in stellarator neoclassical calculations},
  year = {2011},
  volume = {53},
  pages = {082003},
  doi = {10.1088/0741-3335/53/8/082003}
}

A unified treatment of kinetic effects in a tokamak pedestal

P J Catto, G Kagan, M Landreman, and I Pusztai

Plasma Phys. Controlled Fusion 53, 054004 (2011)

journal version bibtex

@article{Catto2011,
  author = {Catto, P J and Kagan, G and Landreman, M and Pusztai, I},
  journal = {Plasma Phys. Controlled Fusion},
  title = {A unified treatment of kinetic effects in a tokamak pedestal},
  year = {2011},
  volume = {53},
  pages = {054004},
  doi = {10.1088/0741-3335/53/5/054004}
}

Neoclassical flow, current, and electric field in a quasi-isodynamic stellarator

M Landreman, and P J Catto

Plasma Phys. Controlled Fusion 53, 035016 (2011)

journal version bibtex

@article{QI,
  author = {Landreman, M and Catto, P J},
  journal = {Plasma Phys. Controlled Fusion},
  title = {Neoclassical flow, current, and electric field in a quasi-isodynamic stellarator},
  year = {2011},
  volume = {53},
  pages = {035016},
  doi = {10.1088/0741-3335/53/3/035016}
}

Effects of the radial electric field in a quasisymmetric stellarator

M Landreman, and P J Catto

Plasma Phys. Controlled Fusion 53, 015004 (2011)

journal version bibtex

@article{LargeErQuasisymmetry,
  author = {Landreman, M and Catto, P J},
  journal = {Plasma Phys. Controlled Fusion},
  title = {Effects of the radial electric field in a quasisymmetric stellarator},
  year = {2011},
  volume = {53},
  pages = {015004},
  doi = {10.1088/0741-3335/53/1/015004}
}

The effect of the radial electric field on neoclassical flows in a tokamak pedestal

G Kagan, K D Marr, P J Catto, M Landreman, B Lipschultz, and R McDermott

Plasma Phys. Controlled Fusion 53, 025008 (2011)

journal version bibtex

@article{Kagan2011,
  author = {Kagan, G and Marr, K D and Catto, P J and Landreman, M and Lipschultz, B and {McDermott}, R},
  journal = {Plasma Phys. Controlled Fusion},
  title = {The effect of the radial electric field on neoclassical flows in a tokamak pedestal},
  year = {2011},
  volume = {53},
  pages = {025008},
  doi = {10.1088/0741-3335/53/2/025008}
}

2010

Trajectories, orbit squeezing, and residual zonal flow in a tokamak pedestal

M Landreman, and P J Catto

Plasma Phys. Controlled Fusion 52, 085003 (2010)

journal version bibtex

@article{Landreman2010,
  author = {Landreman, M and Catto, P J},
  journal = {Plasma Phys. Controlled Fusion},
  title = {Trajectories, orbit squeezing, and residual zonal flow in a tokamak pedestal},
  year = {2010},
  volume = {52},
  pages = {085003},
  doi = {10.1088/0741-3335/52/8/085003}
}

2007

Comparison of parallel and perpendicular polarized counter-propagating light for suppressing high harmonic generation

M Landreman, K O’Keeffe, T Robinson, M Zepf, B Dromey, and S M. Hooker

J. Opt. Soc. Am. B 24, 2421 (2007)

journal version bibtex

@article{Landreman2007,
  author = {Landreman, M and {O'Keeffe}, K and Robinson, T and Zepf, M and Dromey, B and Hooker, S M.},
  journal = {J. Opt. Soc. Am. B},
  year = {2007},
  volume = {24},
  pages = {2421},
  doi = {10.1364/JOSAB.24.002421}
}

Simple technique for generating trains of ultrashort pulses

T Robinson, K O’Keeffe, M Landreman, S M Hooker, M Zepf, and B Dromey

Opt. Lett. 32, 2203 (2007)

journal version bibtex

@article{Robinson2007,
  author = {Robinson, T and {O’Keeffe}, K and Landreman, M and Hooker, S M and Zepf, M and Dromey, B},
  journal = {Opt. Lett.},
  title = {Simple technique for generating trains of ultrashort pulses},
  year = {2007},
  volume = {32},
  pages = {2203},
  doi = {10.1364/OL.32.002203}
}

Quasi-phasematching of harmonic generation via multimode beating in waveguides

B Dromey, M Zepf, M Landreman, and S M Hooker

Opt. Express 15, 7894 (2007)

journal version bibtex

@article{Dromey2007,
  author = {Dromey, B and Zepf, M and Landreman, M and Hooker, S M},
  journal = {Opt. Express},
  title = {Quasi-phasematching of harmonic generation via multimode beating in waveguides},
  year = {2007},
  volume = {15},
  pages = {7894},
  doi = {10.1364/OE.15.007894}
}

Generation of a train of ultrashort pulses from a compact birefringent crystal array

B Dromey, M Zepf, M Landreman, K O’Keeffe, T Robinson, and S M Hooker

App. Opt. 46, 5142 (2007)

journal version bibtex

@article{Dromey2007Train,
  author = {Dromey, B and Zepf, M and Landreman, M and {O'Keeffe}, K and Robinson, T and Hooker, S M},
  journal = {App. Opt.},
  title = {Generation of a train of ultrashort pulses from a compact birefringent crystal array},
  year = {2007},
  volume = {46},
  pages = {5142},
  doi = {10.1364/AO.46.005142}
}

Quasi phase matching techniques for high harmonic generation

M Landreman

MSc Thesis, Oxford University 46, 5142 (2007)

bibtex PDF

@article{OxfordThesis,
  author = {Landreman, M},
  year = {2007},
  title = {Quasi phase matching techniques for high harmonic generation},
  journal = {MSc Thesis, Oxford University},
}

Bright quasi-phasematched soft x-ray harmonic radiation from argon ions

M Zepf, B Dromey, M Landreman, P Foster, and S M Hooker

Phys. Rev. Lett. 99, 143901 (2007)

journal version bibtex

@article{ZepfPRL,
  author = {Zepf, M and Dromey, B and Landreman, M and Foster, P and Hooker, S M},
  journal = {Phys. Rev. Lett.},
  title = {Bright quasi-phasematched soft x-ray harmonic radiation from argon ions},
  year = {2007},
  volume = {99},
  pages = {143901},
  doi = {10.1103/PhysRevLett.99.143901}
}

2005

A nontrivial manifesto

M Landreman

Phys. Today 58, 52 (2005)

journal version bibtex PDF

@article{nontrivial,
  author = {Landreman, M},
  journal = {Phys. Today},
  title = {A nontrivial manifesto},
  year = {2005},
  volume = {58},
  number = {2},
  pages = {52},
  doi = {10.1063/1.1897565},
}

Generalized Ohm’s law in a 3-D reconnection experiment

C D Cothran, M Landreman, M R Brown, and W H Matthaeus

Geophys. Res. Lett. 32, L23104 (2005)

journal version bibtex

@article{Cothran2005,
  author = {Cothran, C D and Landreman, M and Brown, M R and Matthaeus, W H},
  journal = {Geophys. Res. Lett.},
  title = {Generalized Ohm's law in a 3-D reconnection experiment},
  year = {2005},
  volume = {32},
  pages = {L23104},
  doi = {10.1029/2004GL021245}
}

Fluid and kinetic structure of magnetic merging in the Swarthmore Spheromak Experiment

W H Matthaeus, C D Cothran, M Landreman, and M R Brown

Geophys. Res. Lett. 32, L23104 (2005)

journal version bibtex

@article{Matthaeus2005,
  author = {Matthaeus, W H and Cothran, C D and Landreman, M and Brown, M R},
  journal = {Geophys. Res. Lett.},
  title = {Fluid and kinetic structure of magnetic merging in the Swarthmore Spheromak Experiment},
  year = {2005},
  volume = {32},
  pages = {L23104},
  doi = {10.1029/2005GL023973}
}

2003

The Three-Dimensional Structure of Magnetic Reconnection on SSX

M Landreman

Undergraduate Thesis, Swarthmore College 32, L23104 (2003)

bibtex PDF

@article{SwatThesis,
  author = {Landreman, M},
  year = {2003},
  title = {The Three-Dimensional Structure of Magnetic Reconnection on SSX},
  journal = {Undergraduate Thesis, Swarthmore College},
}

Rapid multiplexed data acquisition: Application to three-dimensional magnetic field measurements in a turbulent laboratory plasma

M Landreman, C D Cothran, M R Brown, M Kostora, and J Slough

Rev. Sci. Instrum. 74, 2361 (2003)

journal version bibtex

@article{RSI,
  author = {Landreman, M and Cothran, C D and Brown, M R and Kostora, M and Slough, J},
  journal = {Rev. Sci. Instrum.},
  title = {Rapid multiplexed data acquisition: Application to three-dimensional magnetic field measurements in a turbulent laboratory plasma},
  year = {2003},
  volume = {74},
  pages = {2361},
  doi = {10.1063/1.1544417}
}

Spheromak merging and field reversed configuration formation at the Swarthmore Spheromak Experiment

C D Cothran, A Falk, A Fefferman, M Landreman, M R Brown, and M J Schaffer

Phys. Plasmas 10, 1748 (2003)

journal version bibtex

@article{Cothran2003PoP,
  author = {Cothran, C D and Falk, A and Fefferman, A and Landreman, M and Brown, M R and Schaffer, M J},
  journal = {Phys. Plasmas},
  title = {Spheromak merging and field reversed configuration formation at the Swarthmore Spheromak Experiment},
  year = {2003},
  volume = {10},
  pages = {1748},
  doi = {10.1063/1.1564084}
}

Three dimensional structure of magnetic reconnection in a laboratory plasma

C D Cothran, M Landreman, W H Matthaeus, and M R Brown

Geophys. Res. Lett. 30, 1213 (2003)

journal version bibtex

@article{Cothran2003GRL,
  author = {Cothran, C D and Landreman, M and Matthaeus, W H and Brown, M R},
  journal = {Geophys. Res. Lett.},
  title = {Three dimensional structure of magnetic reconnection in a laboratory plasma},
  year = {2003},
  volume = {30},
  pages = {1213},
  doi = {10.1029/2002GL016497}
}

2002

Energetic particles from three-dimensional magnetic reconnection events in SSX

M R Brown, C D Cothran, M Landreman, D Schlossberg, W H Matthaeus, G Qin, V S Lukin, and T Gray

Phys. Plasmas 9, 2077 (2002)

journal version bibtex

@article{Brown2002PoP,
  author = {Brown, M R and Cothran, C D and Landreman, M and Schlossberg, D and Matthaeus, W H and Qin, G and Lukin, V S and Gray, T},
  journal = {Phys. Plasmas},
  title = {Energetic particles from three-dimensional magnetic reconnection events in SSX},
  year = {2002},
  volume = {9},
  pages = {2077},
  doi = {10.1063/1.1458589}
}

Observation of energetic ions accelerated by three-dimensional magnetic reconnection activity

M R Brown, C D Cothran, M Landreman, D Schlossberg, and W H Matthaeus

Astrophys. J 577, L66 (2002)

journal version bibtex

@article{Brown2002ApJ,
  author = {Brown, M R and Cothran, C D and Landreman, M and Schlossberg, D and Matthaeus, W H},
  journal = {Astrophys. J},
  title = {Observation of energetic ions accelerated by three-dimensional magnetic reconnection activity},
  year = {2002},
  volume = {577},
  pages = {L66},
  doi = {10.1086/344145}
}