Speaker
Description
Introducing a minimal numerical framework capable of simulating intense laser-plasma kinetic interactions. The Vlasov-Maxwell Hamiltonian system is naturally constrained to simulate driving-laser ponderomotive effects on electron and ion kinetics along the direction of laser propagation, without discarding the impact of the relativistic transverse momentum on longitudinal dynamics. Structural conditioning at the Poisson Bracket level is necessary to maintain compatibility with variational discretization and proves key to avoid breaking critical invariants associated to phase-space advection. Implementation of this scheme through composed finite-difference integrators qualifies our model as both time-implicit and Eulerian. We apply this solver to demonstrate relativistic dispersion and laser-driven particle trapping. The techniques we outline are highly extensible.
Acknowledgments
This material is based upon work supported by the Office of Science Workforce Development for Teachers and Scientists (WDTS) via the Science Graduate Student Research (SCGSR) program, administered by the Oak Ridge Institute for Science and Education (ORISE) for the DoE, and managed under ORAU contract number DE-SC0014664. Lawrence Berkeley National Laboratory is managed and operated by The Regents of the University of California under prime contract number DE-AC02-05CH11231. This work is supported by NSF grant number PHY-2108788 and by US DoE grant number DE-SC0018363.
