matt landreman - publications

M Landreman, W Sengupta, and G G Plunk, "Direct construction of optimized stellarator shapes. II. Numerical quasisymmetric solutions," submitted (2018). arXiv:1809.10246

M Landreman and W Sengupta, "Direct construction of optimized stellarator shapes. I. Theory in cylindrical coordinates," submitted (2018). arXiv:1809.10233

M Barnes, F I Parra, and M Landreman, "Stella: A mixed implicit-explicit, delta-f gyrokinetic code for general magnetic field configurations," Submitted, (2018). (arXiv version)

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, "On-surface potential and radial electric field variations in electron root stellarator plasmas," Plasma Physics and Controlled Fusion 60, 104002 (2018). (Journal version) (arXiv version).

M F Martin, M Landreman, P Xanthopoulos, N R Mandell, and W Dorland, "The Parallel Boundary Condition for Turbulence Simulations in Low Magnetic Shear Devices," Plasma Physics and Controlled Fusion 60, 095008 (2018). (Journal version) (arXiv version)

A Mollen, M Landreman, H M Smith, J M Garcia-Regana, and M Nunami, "Flux-surface variations of the electrostatic potential in stellarators: impact on the radial electric field and neoclassical impurity transport," Plasma Physics and Controlled Fusion 60, 084001 (2018).

M Landreman and E J Paul, "Computing local sensitivity and tolerances for stellarator physics properties using shape gradients," Nuclear Fusion 58 076023 (2018). (Journal version) (arXiv version)

E J Paul, M Landreman, A Bader, and W Dorland, "An adjoint method for gradient-based optimization of stellarator coil shapes," Nuclear Fusion 58, 076015 (2018). (Journal version) (arXiv version)

J Ball, F I Parra, M Landreman, and M Barnes, "Optimized up-down asymmetry to drive fast intrinsic rotation in tokamaks," Nuclear Fusion 58, 026003 (2018).

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, A Glasser, "Stellarator Research Opportunities, A report of the National Stellarator Coordinating Committee," Journal of Fusion Energy 37, 51 (2018).

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, "Core Radial Electric Field and Transport in Wendelstein 7-X Plasmas," Physics of Plasmas, 25, 022508 (2018).

N R Mandell, W Dorland, and M Landreman, "Laguerre-Hermite Pseudo-Spectral Velocity Formulation of Gyrokinetics," Journal of Plasma Physics 84, 905840108 (2018). (pdf)

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, "Recent advances in stellarator optimization," Nuclear Fusion 57, 126064 (2017).

E J Paul, M Landreman, F M Poli, D A Spong, H M Smith, and W Dorland, "Rotation and neoclassical ripple transport in ITER," Nuclear Fusion 57, 116044 (2017). (pdf)

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, et al., "Major results from the first plasma campaign of the Wendelstein 7-X stellarator," Nuclear Fusion 57, 102020 (2017). (pdf)

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, "Performance and properties of the first plasmas of Wendelstein 7-X," Plasma Physics and Controlled Fusion 59, 014018 (2017). (pdf)

M Landreman, "An improved current potential method for fast computation of stellarator coil shapes," , Nuclear Fusion 57, 046003 (2017). (pdf)

Jose Garcia-Regana, Craig Beidler, Ralf Kleiber, Per Helander, Albert Mollen, J Arturo Alonso, Matt Landreman, Henning Maassberg, Hakan Smith, Yuriy Turkin, Jose Luis Velasco, "Electrostatic potential variation on the flux surface and its impact on impurity transport," Nuclear Fusion 57, 056004 (2017).

A Stahl, O Embreus, M Landreman, G Papp, and T Fulop, "Runaway-electron formation and electron slide-away in an ITER post-disruption scenario," arXiv:1610.03249 (2016).

M Landreman and A H Boozer, "Efficient magnetic fields for supporting toroidal plasmas," Physics of Plasmas 23, 032506 (2016). (pdf)

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, "Investigation of the core radial electric field in Wendelsetin 7-X plasmas," 43rd European Physical Society Conference on Plasma Physics, Leuven (2016). (pdf)

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, "Core confinement in Wendelstein 7-X limiter plasmas," 43rd European Physical Society Conference on Plasma Physics, Leuven (2016). (pdf)

G J Wilkie, I G Abel, M Landreman, and W Dorland, "Microturbulence-induced modifications to the alpha particle distribution," 43rd European Physical Society Conference on Plasma Physics, Leuven (2016). (pdf)

S Buller, I Pusztai, and M Landreman, "Neoclassical transport with non-trace impurities in density pedestals," 43rd European Physical Society Conference on Plasma Physics, Leuven (2016). (pdf)

A. Stahl, M. Landreman, O. Embreus, and T. Fulop, "NORSE: A solver for the relativistic non-linear Fokker-Planck equation for electrons in a homogeneous plasma," Computer Physics Communications 212, 269 (2017). (pdf).

G. Wilkie, I. Abel, M. Landreman, and W. Dorland, "Transport and deceleration of fusion products in microturbulence," Physics of Plasmas 23, 060703 (2016). (pdf).

I. Pusztai, S. Buller, and M. Landreman, "Global effects on neoclassical transport in the pedestal with impurities," Plasma Physics and Controlled Fusion 58, 085001 (2016). (pdf).

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, "Parallel impurity dynamics in the TJ-II stellarator," Plasma Physics and Controlled Fusion 58, 074009 (2016). (pdf).

A. Stahl, O. Embreus, G. Papp, M. Landreman, and T. Fulop, "Kinetic modelling of runaway electrons in dynamic scenarios," Nuclear Fusion 56, 112009 (2016). (pdf).

A. Mollen, M. Landreman, H. M. Smith, S. Braun, and P. Helander, "Impurities in a non-axisymmetric plasma: Transport and effect on bootstrap current," Physics of Plasmas 22, 112508 (2015). (pdf)

M. Landreman, H. M. Smith, A. Mollen, and P. Helander, "SFINCS: A flexible tool for advanced stellarator neoclassical computations," 20th International Stellarator and Heliotron Workshop, Greifswald, Germany (2015). (pdf)

M. Landreman, T. M. Antonsen Jr., and W. Dorland, "Universal instability for wavelengths below the ion Larmor scale," Physical Review Letters 114, 095003 (2015). (pdf)

M. Landreman, G. G. Plunk, and W. Dorland, "Generalized universal instability: Transient linear amplification and subcritical turbulence," Journal of Plasma Physics 81, 905810501 (2015). (pdf)

F. Parra, I. Calvo, P. Helander, and M. Landreman, "Less constrained omnigeneous stellarators," Nuclear Fusion 55, 033005 (2015). (pdf)

J. Wilkening, A. Cerfon, and M. Landreman, "Accurate spectral numerical schemes for kinetic equations with energy diffusion," Journal of Computational Physics 294, 58 (2015). (pdf)

A. Mollen, M. Landreman, and H. M. Smith, "On collisional impurity transport in nonaxisymmetric plasmas," Journal of Physics: Conference Series 561, 012012 (2014). (pdf)

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, "Poloidal asymmetries in edge transport barriers," Physics of Plasmas 22, 056104 (2015).

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, "Inboard and outboard radial electric field wells in the H- and I-mode pedestal of Alcator C-Mod and poloidal variations of impurity temperature," Nuclear Fusion 54, 083017 (2014).

M. Landreman, H. M. Smith, A. Mollen, and P. Helander, "Comparison of particle trajectories and collision operators for collisional transport in nonaxisymmetric plasmas," Physics of Plasmas 21, 042503 (2014). (pdf)

M. Landreman, F. I Parra, P. J. Catto, D. Ernst, and I. Pusztai, "Radially global delta-f computation of neoclassical phenomena in a tokamak pedestal," Plasma Physics and Controlled Fusion 56, 045005, (2014). (pdf)

I. Pusztai, M. Landreman, A Mollen, Y. O. Kazakov, and T. Fulop, "Radio frequency induced and neoclassical asymmetries and their effects on turbulent impurity transport in a tokamak," Contributions to Plasma Physics 54, 534 (2014). (pdf)

J Arevalo, J A Alonso, K J McCarthy, J L Velasco, J M García-Regaña, M Landreman, "Compressible impurity flow in the TJ-II stellarator," Nuclear Fusion 54, 013008 (2014).

M. Landreman, A. Stahl, and T. Fulop, "Numerical calculation of the runaway electron distribution function and associated synchrotron emission," Computer Physics Communications 185, 847 (2014). (pdf)

M. Landreman and P. J. Catto, "Conservation of energy and magnetic moment in neoclassical calculations for optimized stellarators," Plasma Physics and Controlled Fusion 55, 095017 (2013).

A. Stahl, M. Landreman, G. Papp, E. Hollmann, and T. Fulop, "Synchrotron radiation from a runaway electron distribution in tokamaks," Physics of Plasmas 20, 093302 (2013). (pdf)

T. Fulop and M. Landreman, "Ion runaway in lightning discharges," Physical Review Letters 111, 015006 (2013).

M. Landreman and D. R. Ernst, "New velocity-space discretization for continuum kinetic calculations and Fokker-Planck collisions," Journal of Computational Physics 243, 130 (2013). (pdf)

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, "Comparison of edge turbulence imaging at two different poloidal locations in the scrape-off layer of Alcator C-Mod", Physics of Plasmas 20, 072503 (2013).

P. J. Catto, F. I. Parra, G. Kagan, J. B. Parker, I. Pusztai, and M. Landreman, "Kinetic effects on a tokamak pedestal ion flow, ion heat transport and bootstrap current," Plasma Physics and Controlled Fusion 55, 045009 (2013).

M. Landreman and D. R. Ernst, "Local and global Fokker-Planck neoclassical calculations showing flow and bootstrap current modification in a pedestal," Plasma Physics and Controlled Fusion 54, 115006 (2012). (pdf)

M. Landreman and P. J. Catto, "Omnigenity as generalized quasisymmetry," Physics of Plasmas 19, 056103 (2012). (pdf)

M. Landreman, T. Fulop, and D. Guszejnov, "Impurity flows and plateau-regime poloidal density variation in a tokamak pedestal",Physics of Plasmas 18, 092507 (2011).

M. Landreman, "Electric fields and transport in optimized stellarators," Ph.D. thesis (2011).

M. Landreman, "The monoenergetic approximation in stellarator neoclassical calculations," Plasma Physics and Controlled Fusion 53, 082003 (2011).

P. J. Catto, G. Kagan, M. Landreman, I. Pusztai, "A unified treatment of kinetic effects in a tokamak pedestal," Plasma Physics and Controlled Fusion 53, 054004 (2011).

M. Landreman and P. J. Catto, "Neoclassical flow, current, and electric field in a quasi-isodynamic stellarator," Plasma Physics and Controlled Fusion 53, 035016 (2011).

M. Landreman and P. J. Catto, "Effects of the radial electric field in a quasisymmetric stellarator," Plasma Physics and Controlled Fusion 53, 015004 (2011).

G. Kagan, K. D. Marr, P. J. Catto, M. Landreman, B. Lipschultz, and R. McDermott, "The effect of the radial electric field on neoclassical flows in a tokamak pedestal," Plasma Physics and Controlled Fusion 53, 025008 (2011).

M. Landreman and P. J. Catto, "Trajectories, orbit squeezing, and residual zonal flow in a tokamak pedestal," Plasma Physics and Controlled Fusion, 52 085003 (2010).

M. Landreman, K. O'Keeffe, T. Robinson, M. Zepf, B. Dromey, and S. M. Hooker, "Comparison of parallel and perpendicular polarized counter-propagating light for suppressing high harmonic generation," Journal of the Optical Society of America B, 24 2421 (2007).

T. Robinson, K. O’Keeffe, M. Landreman, S. M. Hooker, M. Zepf, and B. Dromey, "Simple technique for generating trains of ultrashort pulses," Optics Letters, 32 2203 (2007). (pdf)

B. Dromey, M. Zepf, M. Landreman, S. M. Hooker, "Quasi-phasematching of harmonic generation via multimode beating in waveguides," Optics Express 15 7894 (2007). (pdf)

B. Dromey, M. Zepf, M. Landreman, K. O’Keeffe, T. Robinson, and S. M. Hooker," Generation of a train of ultrashort pulses from a compact birefringent crystal array," Applied Optics, 46 5142 (2007). (pdf)

M. Landreman, "Quasi phase matching techniques for high harmonic generation," M.Sc Thesis, Univeristy of Oxford (2007) (pdf)

M. Zepf, B. Dromey, M. Landreman, P. Foster, S. M. Hooker, "Bright quasi-phasematched soft x-ray harmonic radiation from Argon ions," plasm-ph/0702117 (2007).

B. Dromey, M. Zepf, M. Landreman, S. M. Hooker, "Quasi-phasematching of harmonic generation via multimode beating in waveguides," plasm-ph/0702116 (2007).

M. Landreman, "A Nontrivial Manifesto," Physics Today, 58 no. 3, 52 (Mar 2005). (pdf)

M. Landreman, "The Three-Dimensional Structure of Magnetic Reconnection on SSX," Undergraduate thesis, Swarthmore College (2003). (pdf)

M. Landreman, C. D. Cothran, M. R. Brown, M. Kostora, J. Slough, "Rapid multiplexed data acquisition: Application to three-dimensional magnetic field measurements in a turbulent laboratory plasma," Review of Scientific Instruments, 74: 2361 (2003).

M. R. Brown, C. D. Cothran, M. Landreman, D. Schlossberg, W. H. Matthaeus, G. Qin, V. S. Lukin, and T. Gray, "Energetic particles from three-dimensional magnetic reconnection events in SSX," Physics of Plasmas, 9: 2077 (2002).

M. R. Brown, C. D. Cothran, M. Landreman, D. Schlossberg, and W. H. Matthaeus, "Observation of energetic ions accelerated by three-dimensional magnetic reconnection activity," The Astrophysical Journal, 577: L66 (2002).

C. D. Cothran, A. Falk, A. Fefferman, M. Landreman, M. R. Brown, and M. J. Schaffer, "Spheromak merging and field reversed configuration formation at the Swarthmore Spheromak Experiment," Physics of Plasmas, 10: 1748 (2003).

C. D. Cothran, M. Landreman, W. H. Matthaeus, and M. R. Brown, "Three dimensional structure of magnetic reconnection in a laboratory plasma," Geophysical Research Letters, 30: 1213 (2003).

M. E. Swanson, M. Landreman, J. Michel, and J. Kakalios, "Avalanche Stratification - Experimental Tests of the 'Metastable Wedge' and 'Continuous Flow' Models," Materials Research Society Symposia Proceedings (Materials Research Society, Pittsburgh, PA), 627: BB2.6 (2001).