A kinetic approach to Bose-Einstein condensates : Self-phase modulation and Bogoliubov oscillations
Mendonca, J.T. and Bingham, R. and Shukla, P.K. (2005) A kinetic approach to Bose-Einstein condensates : Self-phase modulation and Bogoliubov oscillations. Journal of Experimental and Theoretical Physics, 101 (5). pp. 942-948. ISSN 1063-7761
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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. (c) 2005 Pleiades Publishing, Inc.
| Author(s): | Mendonca, J.T., Bingham, R. and Shukla, P.K. | Item type: | Article |
|---|---|
| ID code: | 31209 |
| Keywords: | Bose-Einstein condensates , conservation equation, kinetic dispersion , collisionless Landau damping, Physics, Physics and Astronomy(all) |
| Subjects: | Science > Physics |
| Department: | Faculty of Science > Physics |
| Depositing user: | Pure Administrator |
| Date deposited: | 13 Jul 2011 08:55 |
| Last modified: | 03 Jan 2019 12:55 |
| URI: | https://strathprints.strath.ac.uk/id/eprint/31209 |
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