18 citations · 18 across the 8 of their papers we have counts for
9 papers
Structure-Preserving MHD-Driftkinetic Discretization for Wave-Particle Interactions
Byung Kyu Na, Stefan Possanner, Xin Wang
We present a structure-preserving discretization of the hybrid magnetohydrodynamics (MHD)-driftkinetic system for simulations of low-frequency wave-particle interactions. The model…
On the Poisson brackets of hybrid plasma models with kinetic ions and massless electrons
Yingzhe Li, Philip J. Morrison, Stefan Possanner +1
We investigate the conditions under which the Jacobi identity holds for a class of recently introduced anti-symmetric brackets for the hybrid plasma models with kinetic ions and ma…
The Linearized Vlasov-Maxwell System as a Hamiltonian System
Dominik Bell, Martin Campos Pinto, Stefan Possanner +1
We present a Hamiltonian formulation for the linearized Vlasov-Maxwell system with a Maxwellian background distribution function. We discuss the geometric properties of the model a…
Geometric Particle-In-Cell discretizations of a plasma hybrid model with kinetic ions and mass-less fluid electrons
Yingzhe Li, Martin Campos Pinto, Florian Holderied +2
We explore the possibilities of applying structure-preserving numerical methods to a plasma hybrid model with kinetic ions and mass-less fluid electrons satisfying the quasi-neutra…
Canonical variables based numerical schemes for hybrid plasma models with kinetic ions and massless electrons
Yingzhe Li, Florian Holderied, Stefan Possanner +1
We study the canonical variables based numerical schemes of a hybrid model with kinetic ions and mass-less electrons. Two equivalent formulations of the hybrid model are presented…
Gyrokinetic theory with polynomial transforms: a model for ions and electrons in maximal ordering
Edoardo Zoni, Stefan Possanner
We propose a novel derivation of the gyrokinetic field-particle Lagrangian for non-collisional ion-electron plasmas in a magnetic background with strong variations (maximal orderin…
Asymptotic-Preserving scheme for the resolution of evolution equations with stiff transport terms
Baptiste Fedele, Claudia Negulescu, Stefan Possanner
We develop an asymptotic-preserving scheme to solve evolution problems containing stiff transport terms. This scheme is based to a micro-macro decomposition of the unknown, coupled…
Gyrokinetics from variational averaging: existence and error bounds
Stefan Possanner
The gyrokinetic paradigm in the long wavelength regime is reviewed from the perspective of variational averaging (VA). The VA-method represents a third pillar for averaging kinetic…
Derivation of a linear collision operator for the spinorial Wigner equation and its semiclassical limit
Benjamin A. Stickler, Stefan Possanner
We systematically derive a linear quantum collision operator for the spinorial Wigner transport equation from the dynamics of a composite quantum system. For suitable two particle…