Dynamics of Electron Holes in an Electron–Oxygen-Ion Plasma

B. Eliasson and P. K. Shukla
Phys. Rev. Lett. 93, 045001 – Published 19 July 2004
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Abstract

The dynamics of electron holes (EHs) in an electron–oxygen-ion plasma is studied by means of Vlasov simulations. It is found that EHs are attracted by ion density maxima but repelled by ion density minima. Standing EHs repel ions owing to the positive EH potential, creating an ion density cavity which ejects the EH, which propagates away from the cavity with a constant speed. On the other hand, propagating EHs can be trapped at ion density maxima. The results of our simulations will help in understanding the nonlinear dynamics of EHs in space and laboratory plasmas.

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  • Received 12 March 2004

DOI:https://doi.org/10.1103/PhysRevLett.93.045001

©2004 American Physical Society

Authors & Affiliations

B. Eliasson and P. K. Shukla

  • Institut für Theoretische Physik IV, Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany

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Issue

Vol. 93, Iss. 4 — 23 July 2004

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