Pathways Workshop: Kinetic Theory & Stochastic Partial Differential Equations: Structure-Preserving Particle Method for Collisional Plasmas
Presenter
August 22, 2025
Keywords:
- singular SPDEs
- regularity structures
- paracontrolled calculus
- KPZ equation
- space-time white noise
- stochastic quantization
- Multiscale analysis
- Intermittency
- SPDEs from fluid dynamics
- Boltzmann equation
- Vlasov-Poisson system
- Vlasov-Maxwell system
- Fokker-Planck equation
- BBGKY hierarchy
MSC:
- 60H15 - Stochastic partial differential equations (aspects of stochastic analysis) [See also 35R60]
- 82C40 - Kinetic theory of gases in time-dependent statistical mechanics
Abstract
The Vlasov-Maxwell-Landau equation is widely regarded as a first-principles model for plasma physics. In this talk, we introduce a novel particle method for this equation that simultaneously models particle transport, electromagnetic field effects, and Coulomb collisions. The method arises from a regularization of the variational formulation of the Landau collision operator, leading to a discretization that conserves mass, momentum, and energy, while also dissipating entropy. We will also discuss recent progress on energy-conserving time discretizations applied to the resulting particle system.