Original scientific paper

On the envelope solitons and modulational instability in an electron - positron plasma

S. Burman ; High Energy Physics Division, Department of Physics, Jadavpur University, Calcutta 700 032, India
A. Roy Chowdhury ; High Energy Physics Division, Department of Physics, Jadavpur University, Calcutta 700 032, India

Abstract

We have studied the formation of envelope soliton in a electron-positron plasma. The deduced nonlinear Schrödinger equation yields information about the modulational instability of the system for the different ranges of the plasma parameters. It is important to note that the modulational stability depends on the positron-electron density ratio. The theory is applicable to solitary waves in space plasmas.

Keywords

electron-positron plasma; envelope soliton; nonlinear Schrödinger equation; modulational stability; dependence on positron-electron density ratio; solitary waves in space plasmas

Hrčak ID:

300929

URI

https://hrcak.srce.hr/300929

Publication date:

2.5.1999.

Article data in other languages: croatian

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