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Advances in High Energy Physics
Volume 2015 (2015), Article ID 746212, 6 pages
Research Article

The Quantum Effects Role on Weibel Instability Growth Rate in Dense Plasma

Physics Department, University of Mazandaran, P.O. Box 47415-416, Babolsar, Iran

Received 21 December 2014; Revised 4 March 2015; Accepted 4 March 2015

Academic Editor: Sally Seidel

Copyright © 2015 M. Mahdavi and F. Khodadadi Azadboni. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The publication of this article was funded by SCOAP3.


The Weibel instability is one of the basic plasma instabilities that plays an important role in stopping the hot electrons and energy deposition mechanism. In this paper, combined effect of the density gradient and quantum effects on Weibel instability growth rate is investigated. The results have shown that, by increasing the quantum parameter, for large wavelengths, the Weibel instability growth rate shrinks to zero. In the large wavelengths limit, the analysis shows that quantum effects and density gradient tend to stabilize the Weibel instability. The density perturbations have decreased the growth rate of Weibel instability in the near corona fuel, . In the small wavelengths limit, for the density gradient, , the tunneling quantum effects increase anisotropy in the phase space. The quantum tunneling effect leads to an unexpected increase in the Weibel instability growth rate.