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Nonlinear saturation of the Weibel instability in a dense Fermi plasma
Institut für Theoretische Physik IV, Ruhr–Universität Bochum, D-44780 Bochum, Germany. (Universidade do Vale do Rio dos Sinos - UNISINOS, Av. Unisinos 950, 93022–000, São Leopoldo, RS, Brazil)
Institut für Theoretische Physik IV, Ruhr–Universität Bochum, D-44780 Bochum, Germany.
Umeå University, Faculty of Science and Technology, Department of Physics. (Institut für Theoretische Physik IV, Ruhr–Universität Bochum, D-44780 Bochum, Germany)
2009 (English)In: Journal of Plasma Physics, ISSN 0022-3778, E-ISSN 1469-7807, Vol. 75, no 2, 251-258 p.Article in journal (Refereed) Published
Abstract [en]

We present an investigation for the generation of intense magnetic fields in dense plasmas with an anisotropic electron Fermi–Dirac distribution. For this purpose, we use a new linear dispersion relation for transverse waves in the Wigner–Maxwell dense quantum plasma system. Numerical analysis of the dispersion relation reveals the scaling of the growth rate as a function of the Fermi energy and the temperature anisotropy. The nonlinear saturation level of the magnetic fields is found through fully kinetic simulations, which indicates that the final amplitudes of the magnetic fields are proportional to the linear growth rate of the instability. The present results are important for understanding the origin of intense magnetic fields in dense Fermionic plasmas, such as those in the next-generation intense laser–solid density plasma experiments.

Place, publisher, year, edition, pages
Cambridge University Press, 2009. Vol. 75, no 2, 251-258 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-24988DOI: 10.1017/S0022377808007368OAI: oai:DiVA.org:umu-24988DiVA: diva2:228478
Available from: 2009-08-02 Created: 2009-08-02 Last updated: 2017-12-13Bibliographically approved

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