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The Rayleigh-Taylor instability and internal waves in quantum plasmas
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
2008 (English)In: Physics Letters A, ISSN 0375-9601, E-ISSN 1873-2429, Vol. 372, no 17, 3042-3045 p.Article in journal (Refereed) Published
Abstract [en]

Influence of quantum effects on the internal waves and the Rayleigh-Taylor instability in plasma is investigated. It is shown that quantum pressure always stabilizes the RT instability. The problem is solved both in the limit of short-wavelength perturbations and exactly for density profiles with layers of exponential stratification. In the case of stable stratification, quantum pressure modifies the dispersion relation of the inertial waves. Because of the quantum effects, the internal waves may propagate in the transverse direction, which was impossible in the classical case. A specific form of pure quantum internal waves is obtained, which do not require any external gravitational field.

Place, publisher, year, edition, pages
Amsterdam: North-Holland , 2008. Vol. 372, no 17, 3042-3045 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-18721DOI: 10.1016/j.physleta.2007.12.065OAI: oai:DiVA.org:umu-18721DiVA: diva2:174641
Available from: 2009-02-24 Created: 2009-02-24 Last updated: 2017-12-13Bibliographically approved

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