Dr. Kumar is an Associate Research Physicist in the theory department at the Princeton Plasma Physics Laboratory. He received a Ph.D. in physics from Ben Gurion University in 2015. He then moved to Princeton to work as a Postdoctoral Research Associate in the Department of Astrophysical Science.
Dr. Kumar has worked on a range of topics in astrophysics and space physics related to collisionless shocks, particle acceleration, and plasma turbulence. His recent research is focused on utilizing self-consistent numerical simulations to understand the dynamics of plasma in various environments. He has developed a fully kinetic particle-in-cell (3D-3V) code called PICTOR. His work at PPPL involves the study of instabilities developing near the core of magnetic confinement fusion devices. He is currently working on extending the capabilities of PICTOR to carry out high-resolution simulations in the cylindrical geometry to further our understanding of these instabilities.