Numerical study of one-dimensional and interacting Bose-Einstein condensates in a random potential

Details Numerical study of one-dimensional and interacting Bose-Einstein condensates in a random potential Numerical study of one-dimensional and interacting Bose-Einstein condensates in a random potential

2006-10-20

arxiv.org/abs/cond-mat/0610579v2

J. Phys. B: At. Mol. Opt. Phys. Vol 41, 045302 (2008), Selected as highlights in europhysicsnews, vol 39, no. 3, page 20 (2008

Physics

Condensed Matter

Other Condensed Matter

13 pages, 13 figures, few typos corrected

Scientific paper

10.1088/0953-4075/41/4/045302

We present a detailed numerical study of the effect of a disordered potential on a confined one-dimensional Bose-Einstein condensate, in the framework of a mean-field description. For repulsive interactions, we consider the Thomas-Fermi and Gaussian limits and for attractive interactions the behavior of soliton solutions. We find that the disorder average spatial extension of the stationary density profile decreases with an increasing strength of the disordered potential both for repulsive and attractive interactions among bosons. In the Thomas Fermi limit, the suppression of transport is accompanied by a strong localization of the bosons around the state k=0 in momentum space. The time dependent density profiles differ considerably in the cases we have considered. For attractive Bose-Einstein condensates, a bright soliton exists with an overall unchanged shape, but a disorder dependent width. For weak disorder, the soliton moves on and for a stronger disorder, it bounces back and forth between high potential barriers.

Affiliated with

Also associated with

No associations

Rating

Numerical study of one-dimensional and interacting Bose-Einstein condensates in a random potential 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 Numerical study of one-dimensional and interacting Bose-Einstein condensates in a random potential, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Numerical study of one-dimensional and interacting Bose-Einstein condensates in a random potential will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-361727