Avoiding Infrared Catastrophes in Trapped Bose-Einstein Condensates

Details Avoiding Infrared Catastrophes in Trapped Bose-Einstein Condensates Avoiding Infrared Catastrophes in Trapped Bose-Einstein Condensates

2004-05-04

arxiv.org/abs/cond-mat/0405064v1

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1103/PhysRevA.70.023602

This paper is concerned with the long wavelength instabilities (infrared catastrophes) occurring in Bose-Einstein condensates (BECs). We examine the modulational instability in ``cigar-shaped'' (1D) attractive BECs and the transverse instability of dark solitons in ``pancake'' (2D) repulsive BECs. We suggest mechanisms, and give explicit estimates, on how to ``engineer'' the trapping conditions of the condensate to avoid such instabilities: the main result being that a tight enough trapping potential suppresses the instabilities present in the homogeneous limit. We compare the obtained estimates with numerical results and we highlight the relevant regimes of dynamical behavior.

Affiliated with

Also associated with

No associations

Rating

Avoiding Infrared Catastrophes in Trapped Bose-Einstein Condensates does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Avoiding Infrared Catastrophes in Trapped Bose-Einstein Condensates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Avoiding Infrared Catastrophes in Trapped Bose-Einstein Condensates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-346080