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A kinetic approach to Bose-Einstein condensates: self-phase modulation and Bogoliubov oscillations
Umeå University, Faculty of Science and Technology, Department of Physics. Institut für Theoretische Physik IV, Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780, Bochum, Germany.
2005 (English)In: Journal of Experimental and Theoretical Physics, ISSN 1063-7761, E-ISSN 1090-6509, Vol. 101, no 5, 942-948 p.Article in journal (Refereed) PublishedText
Abstract [en]

A kinetic approach to Bose-Einstein condensates (BECs) is proposed based on the Wigner-Moyal equation (WME). In the semiclassical limit, the WME reduces to the particle-number conservation equation. Two examples of applications are (i) a self-phase modulation of a BE condensate beam, where we show that part of the beam is decelerated and eventually stops as a result of the gradient of the effective self-potential, and (ii) the derivation of a kinetic dispersion relation for sound waves in BECs, including collisionless Landau damping.

Place, publisher, year, edition, pages
New York: Maik Nauka/Interperiodica, 2005. Vol. 101, no 5, 942-948 p.
Keyword [en]
gases, propagation, equation, sound, field
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:umu:diva-120454DOI: 10.1134/1.2149073ISI: 000233826000018OAI: oai:DiVA.org:umu-120454DiVA: diva2:928989
Available from: 2016-05-17 Created: 2016-05-16 Last updated: 2016-05-17Bibliographically approved

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Shukla, Padma Kant
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ReferencesLink to record
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