A kinetic approach to Bose-Einstein condensates: self-phase modulation and Bogoliubov oscillations
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
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.
gases, propagation, equation, sound, field
Fusion, Plasma and Space Physics
IdentifiersURN: urn:nbn:se:umu:diva-120454DOI: 10.1134/1.2149073ISI: 000233826000018OAI: oai:DiVA.org:umu-120454DiVA: diva2:928989