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Title: Evolution Of Nonlinear Waves in Compressing Plasma

Abstract

Through particle-in-cell simulations, the evolution of nonlinear plasma waves is examined in one-dimensional collisionless plasma undergoing mechanical compression. Unlike linear waves, whose wavelength decreases proportionally to the system length L(t), nonlinear waves, such as solitary electron holes, conserve their characteristic size {Delta} during slow compression. This leads to a substantially stronger adiabatic amplification as well as rapid collisionless damping when L approaches {Delta}. On the other hand, cessation of compression halts the wave evolution, yielding a stable mode.

Authors:
Publication Date:
Research Org.:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1025014
Report Number(s):
PPPL-4628
TRN: US1104848
DOE Contract Number:  
DE-ACO2-09CH11466
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AMPLIFICATION; COLLISIONLESS PLASMA; COMPRESSION; DAMPING; HOLES; PLASMA; PLASMA WAVES; WAVELENGTHS; Compression, Numerical Simulation, Nonlinear Effects

Citation Formats

P.F. Schmit, I.Y. Dodin, and N.J. Fisch. Evolution Of Nonlinear Waves in Compressing Plasma. United States: N. p., 2011. Web. doi:10.2172/1025014.
P.F. Schmit, I.Y. Dodin, and N.J. Fisch. Evolution Of Nonlinear Waves in Compressing Plasma. United States. doi:10.2172/1025014.
P.F. Schmit, I.Y. Dodin, and N.J. Fisch. Fri . "Evolution Of Nonlinear Waves in Compressing Plasma". United States. doi:10.2172/1025014. https://www.osti.gov/servlets/purl/1025014.
@article{osti_1025014,
title = {Evolution Of Nonlinear Waves in Compressing Plasma},
author = {P.F. Schmit, I.Y. Dodin, and N.J. Fisch},
abstractNote = {Through particle-in-cell simulations, the evolution of nonlinear plasma waves is examined in one-dimensional collisionless plasma undergoing mechanical compression. Unlike linear waves, whose wavelength decreases proportionally to the system length L(t), nonlinear waves, such as solitary electron holes, conserve their characteristic size {Delta} during slow compression. This leads to a substantially stronger adiabatic amplification as well as rapid collisionless damping when L approaches {Delta}. On the other hand, cessation of compression halts the wave evolution, yielding a stable mode.},
doi = {10.2172/1025014},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri May 27 00:00:00 EDT 2011},
month = {Fri May 27 00:00:00 EDT 2011}
}

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