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physics.plasm-ph2025
Gauge-invariant variational formulations of electromagnetic gyrokinetic theory
Ronald Remmerswaal, Roman Hatzky, Eric Sonnendrücker
The use of gyrokinetics, wherein phase-space coordinate transformations result in a phase-space dimensionality reduction as well as the removal of fast time scales, has enabled the…
physics.plasm-ph2024
Piecewise Field-Aligned Finite Element Method for Multi-Mode Nonlinear Particle Simulations in tokamak plasmas
Zhixin Lu, Guo Meng, Eric Sonnendrücker +5
This paper presents a novel approach for simulating plasma instabilities in tokamak plasmas using the piecewise field-aligned finite element method in combination with the particle…