Special Issue "Theory and Simulation of Electron and Ion Holes: Latest Trends and Perspectives"
A special issue of Plasma (ISSN 2571-6182).
Deadline for manuscript submissions: closed (30 June 2021).
Special Issue Editor
Interests: plasma simulations; nonlinear kinetics of plasmas; dusty and complex plasmas; magnetic confinement confinement fusion; plasma wall transition physics
Special Issue Information
Dear Colleagues,
The onset of localized structure formation cannot be effectively described by Landau theory in realistic e.g. noisy plasmas; this represents one of the main challenges contemporary collisionless plasma theory is faced with. Long-lived phase space vortices or "holes", triggered by tiny stimuli or seeds, are now part of every simulation of driven plasmas regardless of the strength of the drive.
On the other hand, recent advances in the theory of hole equilibria, achieved by Schamel's pseudo-potential method, show an unlimited variety of hole solutions with fine structures in the phase space that no longer can be resolved experimentally. These solutions of the current-driven Vlasov-Poisson system not only enable the investigation of particle trapping effects, but also testing of linear Vlasov equilibria (van Kampen, Landau) or completing and upgrading of nonlinear BGK solutions. The origin of this complex - and surprising, for many - departure from linearity lies in the self-consistent nature of these coherent structures and in the resonant wave-particle interaction, the chaotic nature of which is responsible for an unlimited variety of particle trapping scenarios of either perturbative or non-perturbative character.
Theoretical and computational advancements that may help further clarify this complex subject are welcome for this Special Issue. Examples may include the influence of pair correlations at resonance or asymmetric versions of holes including double layers, among other possibilities.
Dr. Devendra Sharma
Guest Editor
Manuscript Submission Information
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Keywords
- kinetic hole structures
- phase space vortices
- nonlinear trapping
- separatrices
- Vlasov
- chaotic trajectories
- intermittence
