Electromagnetic fluctuations and normal modes of a drifting relativistic plasma

Journal Article · Fri Nov 15 00:00:00 EST 2013 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4829022· OSTI ID:22218404

Ruyer, C.; Gremillet, L.; Bénisti, D. ^[1]; Bonnaud, G. ^[2]

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1. CEA, DAM, DIF, F-91297 Arpajon (France)
2. CEA, Saclay, INSTN, F-91191 Gif-sur-Yvette (France)

We present an exact calculation of the power spectrum of the electromagnetic fluctuations in a relativistic equilibrium plasma described by Maxwell-Jüttner distribution functions. We consider the cases of wave vectors parallel or normal to the plasma mean velocity. The relative contributions of the subluminal and supraluminal fluctuations are evaluated. Analytical expressions of the spatial fluctuation spectra are derived in each case. These theoretical results are compared to particle-in-cell simulations, showing a good reproduction of the subluminal fluctuation spectra.

• OSTI ID: 22218404
• Journal Information: Physics of Plasmas, Vol. 20, Issue 11; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPARATIVE EVALUATIONS
DISTRIBUTION FUNCTIONS
EQUILIBRIUM PLASMA
FLUCTUATIONS
MAXWELL EQUATIONS
PLASMA DRIFT
PLASMA SIMULATION
RELATIVISTIC PLASMA
VECTORS