Theory and simulations of nonlinear kinetic structures in plasmas

B Eliasson, Padma Shukla, M E Dieckmann

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We present analytical and numerical studies of the dynamics of relativistic electron and ion holes in a collisionless plasma. Electromagnetic radiation can be trapped in relativistic electron phase-space holes mainly due to the relativistic mass increase of the electrons that are accelerated by the potential of the phase-space hole and by the quivering component of the electromagnetic field. Relativistic ion holes may exist in plasmas where the electrons are thermalized to extremely ultra-relativistic energies. They may be responsible for the acceleration of particles to GeV energies in active galactic nuclei and supernova remnant shocks. The analytic solutions are employed as initial conditions for numerical simulations in which the dynamics and stability of the phase-space holes are investigated. The results have relevance for intense laser–plasma experiments and for astrophysical plasmas.
LanguageEnglish
PagesB257-B265
Number of pages9
JournalPlasma Physics and Controlled Fusion
Volume48
Issue number12B
DOIs
Publication statusPublished - 13 Nov 2006

Fingerprint

Plasmas
Kinetics
Electrons
kinetics
simulation
Collisionless plasmas
Ions
Electromagnetic waves
Electromagnetic fields
electrons
collisionless plasmas
supernova remnants
laser plasmas
active galactic nuclei
Lasers
electromagnetic radiation
astrophysics
Computer simulation
ions
electromagnetic fields

Keywords

  • electron holes
  • ion holes
  • relativistic plasma

Cite this

Eliasson, B ; Shukla, Padma ; Dieckmann, M E. / Theory and simulations of nonlinear kinetic structures in plasmas. In: Plasma Physics and Controlled Fusion. 2006 ; Vol. 48, No. 12B. pp. B257-B265.
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Theory and simulations of nonlinear kinetic structures in plasmas. / Eliasson, B; Shukla, Padma; Dieckmann, M E.

In: Plasma Physics and Controlled Fusion, Vol. 48, No. 12B, 13.11.2006, p. B257-B265.

Research output: Contribution to journalArticle

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T1 - Theory and simulations of nonlinear kinetic structures in plasmas

AU - Eliasson, B

AU - Shukla, Padma

AU - Dieckmann, M E

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N2 - We present analytical and numerical studies of the dynamics of relativistic electron and ion holes in a collisionless plasma. Electromagnetic radiation can be trapped in relativistic electron phase-space holes mainly due to the relativistic mass increase of the electrons that are accelerated by the potential of the phase-space hole and by the quivering component of the electromagnetic field. Relativistic ion holes may exist in plasmas where the electrons are thermalized to extremely ultra-relativistic energies. They may be responsible for the acceleration of particles to GeV energies in active galactic nuclei and supernova remnant shocks. The analytic solutions are employed as initial conditions for numerical simulations in which the dynamics and stability of the phase-space holes are investigated. The results have relevance for intense laser–plasma experiments and for astrophysical plasmas.

AB - We present analytical and numerical studies of the dynamics of relativistic electron and ion holes in a collisionless plasma. Electromagnetic radiation can be trapped in relativistic electron phase-space holes mainly due to the relativistic mass increase of the electrons that are accelerated by the potential of the phase-space hole and by the quivering component of the electromagnetic field. Relativistic ion holes may exist in plasmas where the electrons are thermalized to extremely ultra-relativistic energies. They may be responsible for the acceleration of particles to GeV energies in active galactic nuclei and supernova remnant shocks. The analytic solutions are employed as initial conditions for numerical simulations in which the dynamics and stability of the phase-space holes are investigated. The results have relevance for intense laser–plasma experiments and for astrophysical plasmas.

KW - electron holes

KW - ion holes

KW - relativistic plasma

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