Constant residual electrostatic electron plasma mode in Vlasov-Ampere system

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

DOI:https://doi.org/10.1063/1.4831761· OSTI ID:22218408

Xie, Hua-sheng ^[1]

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1. Institute for Fusion Theory and Simulation, Department of Physics, Zhejiang University, Hangzhou 310027 (China)

In a collisionless Vlasov-Poisson (V-P) electron plasma system, two types of modes for electric field perturbation exist: the exponentially Landau damped electron plasma waves and the initial-value sensitive ballistic modes. Here, the V-P system is modified slightly to a Vlasov-Ampere (V-A) system. A new constant residual mode is revealed. Mathematically, this mode comes from the Laplace transform of an initial electric field perturbation, and physically represents that an initial perturbation (e.g., external electric field perturbation) would not be damped away. Thus, this residual mode is more difficult to be damped than the ballistic mode.

• OSTI ID: 22218408
• 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
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOLTZMANN-VLASOV EQUATION
CHARGED-PARTICLE TRANSPORT
DISTURBANCES
ELECTRIC FIELDS
ELECTRON PLASMA WAVES
ELECTRONS
LAPLACE TRANSFORMATION
PLASMA