Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 942-948 |
| Number of pages | 7 |
| Journal | Journal of Experimental and Theoretical Physics |
| Volume | 101 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2005 |
Keywords
- Bose-Einstein condensates
- conservation equation
- kinetic dispersion
- collisionless Landau damping