Dynamical behaviour of transverse plasmons in pair plasmas

doi:10.1088/1674-1056/20/1/015203

Abstract This paper analytically investigates the nonlinear behaviour of transverse plasmons in pair plasmas on the basis of the nonlinear governing equations obtained from Vlasov–Maxwell equations. It shows that high frequency transverse plasmons are modulationally unstable with respect to the uniform state of the pair plasma. Such an instability would cause wave field collapse into a localized region. During the collapse process, ponderomotive expulsion is greatly enhanced for the increase of wave field strength, leading to the formation of localized density cavitons which are significant for the future experimental research in the interaction between high frequency electromagnetic waves and pair plasmas.

Keywords: transverse plasmon pair plasma modulational instability density caviton

Received: 11 May 2010
Revised: 30 May 2010
Accepted manuscript online:

PACS:	52.27.Ep	(Electron-positron plasmas)
	52.35.Mw	(Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))
	52.40.Db	(Electromagnetic (nonlaser) radiation interactions with plasma)

Fund: Project supported by the National Basic Research Program of China (Grant No. 2010CB635112), the National Natural Science Foundation of China (Grant No. 10963002), the International Science and Technology Cooperation Program of China (Grant No. 2009DFA02320).

Cite this article:

Liu San-Qiu(刘三秋), Liu Yong(刘勇), and Li Xiao-Qing(李晓卿) Dynamical behaviour of transverse plasmons in pair plasmas 2011 Chin. Phys. B 20 015203

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