Phys. Rev. Lett. 89, 150402 (2002) [4 pages]Accidental Suppression of Landau Damping of the Transverse Breathing Mode in Elongated Bose-Einstein CondensatesReceived 28 June 2002; published 19 September 2002 We study transverse radial oscillations of an elongated Bose-Einstein condensate using finite-temperature simulations, in the context of a recent experiment at ENS [ F. Chevy et al. Phys. Rev. Lett. 88 250402 (2002)]. The mode observed experimentally corresponds to an in-phase collective oscillation of both the condensate and the thermal cloud. Our simulations are in excellent agreement with experiment, accounting for the very small damping rates observed. In contrast to other condensate modes, interatomic collisions are found to be the dominant damping mechanism in this case. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.150402
DOI:
10.1103/PhysRevLett.89.150402
PACS:
03.75.Fi, 05.30.Jp, 67.40.Db
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.