Evolution of unstable ion acoustic solitons

T. E. Sheridan

doi:10.1109/27.763093

Evolution of unstable ion acoustic solitons

T. E. Sheridan^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The evolution of a localized potential perturbation in a plasma of cold, kinetic ions and Boltzmann electrons is investigated computationally. We find that small perturbations evolve into a train of stable ion acoustic solitons, as predicted by the Korteweg-de Vries theory. Large perturbations, however, are found to evolve into solitons that exceed the soliton speed limit. Such solitons are unstable and decay by emitting reflected ions bursts and ion acoustic waves.

Original language	English
Pages (from-to)	140-141
Number of pages	2
Journal	IEEE Transactions on Plasma Science
Volume	27
Issue number	1
DOIs	https://doi.org/10.1109/27.763093
Publication status	Published - 1999

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title = "Evolution of unstable ion acoustic solitons",

abstract = "The evolution of a localized potential perturbation in a plasma of cold, kinetic ions and Boltzmann electrons is investigated computationally. We find that small perturbations evolve into a train of stable ion acoustic solitons, as predicted by the Korteweg-de Vries theory. Large perturbations, however, are found to evolve into solitons that exceed the soliton speed limit. Such solitons are unstable and decay by emitting reflected ions bursts and ion acoustic waves.",

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AB - The evolution of a localized potential perturbation in a plasma of cold, kinetic ions and Boltzmann electrons is investigated computationally. We find that small perturbations evolve into a train of stable ion acoustic solitons, as predicted by the Korteweg-de Vries theory. Large perturbations, however, are found to evolve into solitons that exceed the soliton speed limit. Such solitons are unstable and decay by emitting reflected ions bursts and ion acoustic waves.

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U2 - 10.1109/27.763093

DO - 10.1109/27.763093

M3 - Article

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JO - IEEE Transactions on Plasma Science

JF - IEEE Transactions on Plasma Science

IS - 1

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Evolution of unstable ion acoustic solitons

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