CIMS, NYU

- 2022
- E. Toler, A.J. Cerfon, and D. Malhotra, A fast, accurate, and easy to implement quadrature scheme for singular integrals in axisymmetric geometries,
*submitted to the Journal of Plasma Physics*(2022) - G. Le Bars, J.-Ph. Hogge, J. Loizu, S. Alberti, F. Romano, and A. Cerfon, Self-consistent formation and steady-state characterization of trapped high-energy electron clouds in the presence of a neutral gas background,
*Physics of Plasmas***29**, 082105 (2022);[arXiv] - F. Wechsung, A. Giuliani, M. Landreman, A. Cerfon, and G. Stadler, Stochastic and
*a posteriori*optimization to mitigate coil manufacturing errors in stellarator design,*Plasma Physics and Controlled Fusion***64**, 105021 (2022);[arXiv] - A. Giuliani, F. Wechsung, G. Stadler, A. Cerfon, and M. Landreman,Direct computation of magnetic surfaces in Boozer coordinates and coil optimization for quasisymmetry,
*Journal of Plasma Physics***88**, 905880401 (2022);[arXiv] - F. Wechsung, A. Giuliani, M. Landreman, A.J. Cerfon, and G. Stadler, Single-stage gradient-based stellarator coil design: stochastic optimization,
*Nuclear Fusion***62**, 076034 (2022);[arXiv] - F. Law, A. Cerfon, and B. Peherstorfer, Accelerating the estimation of energetic particle confinement statistics in stellarators using multifidelity Monte Carlo,
*Nuclear Fusion***62**, 076019 (2022);[arXiv] - F. Wechsung, M. Landreman, A. Giuliani, A.J. Cerfon, and G. Stadler, Precise stellarator quasi-symmetry can be achieved with electromagnetic coils,
*Proceedings of the National Academy of Sciences***119**e2202084119 (2022) (Open access) - A. Giuliani, F. Wechsung, A. Cerfon, G. Stadler, and M. Landreman, Single-stage gradient-based stellarator coil design: Optimization for near-axis quasi-symmetry,
*Journal of Computational Physics***459**, 111147 (2022); [arXiv] - S. Muralikrishnan, A.J. Cerfon, M. Frey, L.F. Ricketson, and A. Adelmann, Sparse grid-based Adaptive Noise Reduction strategy for Particle-In-Cell schemes,
*Journal of Computational Physics X***11**, 100094 (2021); [arXiv] - Y. Wang, D. Malhotra, and A.J. Cerfon, Comment on "Stepped pressure profile equilibria in cylindrical plasmas via partial Taylor relaxation",
*Journal of Plasma Physics***87**, 175870202 (2021) - D.J. Segal, A.J. Cerfon, and J.P. Freidberg, Steady state versus pulsed tokamak reactors,
*Nuclear Fusion***61**045001 (2021);[arXiv] - D. Qi, A. J. Majda, and A. J. Cerfon, Dimits shift, avalanche-like bursts, and solitary propagating structures in the two-field flux-balanced Hasegawa–Wakatani model for plasma edge turbulence,
*Physics of Plasmas***27**, 102304 (2020);[arXiv]**Selected as Featured article** - D. Malhotra, A.J. Cerfon, M. O'Neil, and E. Toler, Efficient high-order singular quadrature schemes in magnetic fusion,
*Plasma Physics and Controlled Fusion***62**, 024004 (2020) (Special Issue on 3D MHD Equilibria: Flux Surfaces, Islands and Chaotic Fields);[arXiv] - E. Kim, G.B. McFadden, and A.J. Cerfon, Elimination of MHD current sheets by modifications to the plasma wall in a fixed boundary model,
*Plasma Physics and Controlled Fusion***62**, 044002 (2020) (Special Issue on 3D MHD Equilibria: Flux Surfaces, Islands and Chaotic Fields);[arXiv] - T. Sanchez-Vizuet, M.E. Solano, and A.J. Cerfon, Adaptive Hybridizable Discontinuous Galerkin discretization of the Grad-Shafranov equation by extension from polygonal subdomains,
*Computer Physics Communications***255**, 107239 (2020);[arXiv] - J.P. Lee and A.J. Cerfon, Magnetic shear due to localized toroidal flow shear in tokamaks,
*Plasma Physics and Controlled Fusion***61**105007 (2019); - D. Qi, A.J. Majda and A.J. Cerfon, A Flux-Balanced Fluid Model for Collisional Plasma Edge Turbulence: Numerical Simulations with Different Aspect Ratios,
*Physics of Plasmas***26**, 082303 108791 (2019);[arXiv] - D. Malhotra, A.J. Cerfon, L.-M. Imbert-Gérard, and M. O'Neil, Taylor States in Stellarators: A Fast High-order Boundary Integral Solver,
*Journal of Computational Physics***397**, 108791 (2019);[arXiv] - A.J. Majda, D. Qi and A.J. Cerfon, A flux-balanced fluid model for collisional plasma edge turbulence: model derivation and basic physical features,
*Physics of Plasmas***25**,102307 (2018);[arXiv] - T. Sanchez-Vizuet and A.J. Cerfon, Pseudo spectral collocation with Maxwell polynomials for kinetic equations with energy diffusion,
*Plasma Physics and Controlled Fusion***60**, 025018 (2018);[arXiv] - D.A. Gates, D. Anderson, S. Anderson, M. Zarnstorff, D.A. Spong, H. Weitzner, G.H. Neilson, D. Ruzic, D. Andruczyk, J.H. Harris, H. Mynick, C.C. Hegna, O. Schmitz, J.N. Talmadge, D. Curreli, D. Maurer, A.H. Boozer, S. Knowlton, J.P. Allain, D. Ennis, G. Wurden, A. Reiman, J.D. Lore, M. Landreman, J.P. Freidberg, S.R. Hudson, M. Porkolab, D. Demers, J. Terry, E. Edlund, S.A. Lazerson, N. Pablant, R. Fonck, F. Volpe, J. Canik, R. Granetz, A. Ware, J.D. Hanson, S. Kumar, C. Deng, K. Likin, A.J. Cerfon, A. Ram, A. Hassam, S. Prager, C. Paz-Soldan, M.J. Pueschel, I. Joseph, A.H. Glasser, Stellarator Research Opportunities: A Report of the National Stellarator Coordinating Committee,
*Journal of Fusion Energy***37**, 51 (2018) - M. O'Neil and A.J. Cerfon, An integral equation-based numerical solver for Taylor states in toroidal geometries,
*Journal of Computational Physics***359**, 263 (2018);[arXiv] - J. Guadagni and A.J. Cerfon, Fast and spectrally accurate evaluation of gyroaverages in non-periodic gyrokinetic-Poisson simulations,
*Journal of Plasma Physics***83**, 905830407 (2017);[arXiv] - T. Askham and A.J. Cerfon, An adaptive fast multipole accelerated Poisson solver for complex geometries,
*Journal of Computational Physics***344**, 1 (2017);[arXiv] - J.P. Lee, J.P. Freidberg, A.J. Cerfon and M. Greenwald, An analytic scaling relation for the maximum
tokamak elongation against n=0 MHD resistive wall modes,
*Nuclear Fusion***57**, 066051 (2017); [arXiv]
- L.F. Ricketson and A.J. Cerfon, Sparse grid techniques for particle-in-cell schemes,
*Plasma Physics and Controlled Fusion***59**, 024002 (2017) (Special Issue article - 2016 International Sherwood Fusion Theory Conference);[arXiv] - J. Ball, F.I. Parra, J.P. Lee, and A.J. Cerfon, Effect of the Shafranov shift and the gradient of β on intrinsic momentum transport in up-down asymmetric tokamaks,
*Plasma Physics and Controlled Fusion***58**, 125015 (2016); [arXiv] - A.J. Cerfon, Vortex dynamics and shear-layer instability in high-intensity cyclotrons,
*Physical Review Letters***116**, 174801 (2016); [arXiv] - L.F. Ricketson, A.J. Cerfon, M. Racch, and J.P. Freidberg, Accurate Derivative Evaluation for any Grad-Shafranov Solver,
*Journal of Computational Physics***305**, 744 (2016); [arXiv] - J.P. Freidberg, A.J. Cerfon, and J.P. Lee, Tokamak elongation: how much is too much? Part 1. Theory,
*Journal of Plasma Physics***81**, 515810607 (2015); [arXiv] - J.P. Lee, A.J. Cerfon, J.P. Freidberg, and M. Greenwald , Tokamak elongation: how much is too much? Part 2. Numerical Results,
*Journal of Plasma Physics***81**, 515810608 (2015); [arXiv] - A. Reiman, N.M. Ferraro, A. Turnbull, J.K. Park, A. Cerfon, T.E. Evans, M.J. Lanctot, E.A. Lazarus, Y. Liu, G. McFadden, D. Monticello, Y. Suzuki, Tokamak Plasma High Field Side Response to an n = 3 Magnetic Perturbation: A Comparison of 3D Equilibrium Solutions from Seven Different Codes,
*Nuclear Fusion***55**, 063026 (2015); - J. Wilkening, A.J. Cerfon and M. Landreman, Projected dynamics of kinetic equations with energy diffusion in spaces of orthogonal polynomials,
*Journal of Computational Physics***294**, 58 (2015);[arXiv] - J. Wilkening and A.J. Cerfon, A Spectral Transform Method for Singular
Sturm-Liouville Problems with Applications to Energy Diffusion in
Plasma Physics,
*SIAM Journal on Applied Mathematics***75**, 350 (2015);[arXiv] - J.P. Lee and A.J. Cerfon, ECOM: a fast and accurate solver for toroidal axisymmetric MHD equilibria,
*Computer Physics Communications***190**, 72 (2015);[arXiv] - A.J. Cerfon and M. O'Neil, Exact axisymmetric Taylor states for shaped plasmas,
*Physics of Plasmas***21**, 064501 (2014);[arXiv] - A. Pataki, A.J. Cerfon, J.P. Freidberg, L.Greengard, M. O'Neil, A fast, high-order solver for the Grad-Shafranov equation,
*Journal of Computational Physics***243**, 28 (2013);[arXiv] - A.J. Cerfon, J.P. Freidberg, F.I. Parra, T.A. Antaya, Analytic fluid theory of beam spiraling in high-intensity cyclotrons,
*Physical Review Special Topics -- Accelerators and Beams***16**, 024202 (2013);[arXiV] - A.J. Cerfon and J.P. Freidberg, Magnetohydrodynamic stability comparison theorems revisited,
*Physics of Plasmas***18**, 012505 (2011) - A.J. Cerfon and J.P. Freidberg, "One size fits all" analytic solutions to the Grad-Shafranov equation,
*Physics of Plasmas***17**, 032502 (2010) - A.J. Cerfon, E.M. Choi, C.D. Marchewka, I. Mastovsky, M.A. Shapiro, J.R. Sirigiri, R. J. Temkin, Observation and Study of Low-Frequency Oscillations in a 1.5-MW 110-GHz Gyrotron,
*IEEE Transactions on Plasma Science*, Vol. 37, Number 7, pp.1219 - 1224 (2009) - E.M. Choi, A.J. Cerfon, I. Mastovsky, M.A. Shapiro, J.R. Sirigiri, R.J. Temkin, Efficiency Enhancement of a 1.5-MW, 110-GHz Gyrotron with a Single-Stage Depressed Collector,
*Fusion Science and Technology*, Volume 52, Number 2, pp.334 - 339 (2007)

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2007

- Sparse grids based noise reduction for the numerical simulation of kinetic plasmas,
*INS Colloquium*, Shanghai Jiao Tong University, January 11 2022 - Magnetohydrodynamic equilibrium in non-axisymmetric toroidal domains: existence of solutions and current singularities,
*Analysis of Fluids Seminar*, Princeton University, February 20 2020 - Efficient Integral Equation Based Solvers for Optimized Magnetic Fusion Devices,
*Applied Math Colloquium*, NJIT, November 15 2019 - Efficient numerical methods for stellarator optimization,
*Plasma Physics Seminar*, University of Wisconsin, Madison, October 28 2019 - Mathematical challenges in modeling beam dynamics in cyclotrons,
*KI-Net Conference on Forward and Inverse Problems in Kinetic Theory*, University of Wisconsin, Madison, October 27 2019 - Andy and the Fusionauts,
*Scientific Grand Challenges and New Perspectives in Applied Mathematics: Ocean, Atmosphere and Climate Sciences, Conference to Honour the 70th Birthday of Andrew J. Majda*, University of Victoria, Victoria, British Columbia, Canada, July 24-26 2019 - Fighting the curse of dimensionality in kinetic simulations of plasmas,
*Mini-Symposium: Interacting particle systems: Mean-field limits and applications to machine learning*, ICIAM 2019, Valencia, Spain, July 19 2019 - Early results from the Simons Collaboration on stellarator optimization,
*2nd US-Japan JIFT Workshop on "Progress on advanced optimization concept and modeling in stellarator-heliotrons"*, Madison, Wisconsin, June 19-21 2019 - Fighting the curse of dimensionality in kinetic simulations of plasmas,
*Mini-Workshop: Innovative Trends in the Numerical Analysis and Simulation of Kinetic Equations*, Oberwolfach, Germany, December 2018 - Sparse grids Particle in Cell scheme for noise reduction in beam simulations,
*ICAP'18 - 13th International Computational Accelerator Physics Conference*, Key West, Florida, October 2018 - Fast and high order computation of axisymmetric MHD equilibria via conformal mapping,
*SIAM Conference on Nonlinear Waves and Coherent Structures (NWCS18)*, Mini-symposium on Nonlinear Waves, Singularities, and Conformal Maps in Hydrodynamics, Physics, and Biology , Anaheim - Orange County, California, June 2018 - A fast integral equation based solver for the computation of Taylor states in toroidal geometries,
*Princeton Plasma Physics Laboratory Theory Seminar*, Princeton, November 2017 - Computing accurate MHD equilibria for plasma waves simulations,
*Waves in Fusion Plasmas summer school*, UPMC Paris, July 2017 -- Lecture Notes available here - Leslie and the Fusionauts,
*Modern Advances in Computational and Applied Mathematics: a workshop in honor of the birthdays of Charlie Epstein and Leslie Greengard*, Yale University, June 2017 - An Adaptive Fast Multipole Accelerated Poisson Solver for Complex Geometries,
*2017 SIAM Conference on Computational Science and Engineering, Mini-Symposium on Integral equation methods for inhomogeneous partial differential equations*, Atlanta, February 2017 - Introduction to Magnetohydrodynamics,
*SULI Introductory Course in Plasma Physics*, Princeton Plasma Physics Laboratory, June 2016 - Classical Instabilities in Cyclotron Beams,
*UMD Plasma Physics Seminar*, October 2015 - High performance elliptic solvers for magnetic fusion,
*NJIT Fluid Mechanics and Waves Seminar*, October 2015 - Introduction to Magnetohydrodynamics,
*SULI Introductory Course in Plasma Physics*, Princeton Plasma Physics Laboratory, June 2015 - Fast, high order solvers for axisymmetric MHD equilibria,
*Groupe de travail fusion magnetique, Universite de Nice Sophia Antipolis - Laboratoire J.A. Dieudonne*, July 2014 - Beam dynamics in high intensity cyclotrons: can fusion theorists help nuclear medicine?,
*MIT Plasma Science and Fusion Center Seminar*, May 2014 - Fast Equilibrium Solvers for magnetic fusion simulations,
*"Progress in numerical simulations for plasmas: Methods and Results" workshop*, Labex Plas@Par and UPMC, Institut Poincare, Paris, France, March 2014 - Fluid Theory of Beam Spiraling in Isochronous Cyclotrons,
*BNL Accelerator Physics Seminars*, December 2013 - Progress in Bringing a Star to Earth, Introductory Talk for the Kavli Frontiers of Science 2013 Symposium session on magnetic confinement fusion, Irvine, CA, November 2013
- Vlasov Equation Approach to Space Charge Effects in Isochronous Machines,
*20th International Conference on Cyclotrons and their Applications*, Vancouver, BC, Canada, September 2013 - Fusion driven fuel breeders,
*CANES-MIT INEST-INL Workshop on Non-Conventional Fissile Fuel Futures*, Cambridge, USA, June 2013 - Fast computation of three dimensional MHD equilibria,
*Columbia University Plasma Physics Colloquium*, December 2012 - Numerical Calculation of Three-Dimensional Plasma Equilibria: Fast, Accurate, or Both?,
*UCLA Applied Math Colloquium, February 2012* - Are fusion plasmas compressible?(and why do we care),
*MIT NSE PhD Research Expo*, March 2010, Cambridge, MA - Revisiting MHD stability comparison theorems: Some surprising new results,
*2009 International Sherwood Fusion Theory Conference*, Denver, CO