Hartung, Michael and Wellens, Thomas and Mueller, Cord A. and Richter, Klaus and Schlagheck, Peter (2008) Coherent backscattering of Bose-Einstein condensates in two-dimensional disorder potentials. PHYSICAL REVIEW LETTERS, 101 (2): 020603. ISSN 0031-9007,
Full text not available from this repository.Abstract
We study quantum transport of an interacting Bose-Einstein condensate in a two-dimensional disorder potential. In the limit of a vanishing atom-atom interaction, a sharp cone in the angle-resolved density of the scattered matter wave is observed, arising from constructive interference between amplitudes propagating along reversed scattering paths. Weak interaction transforms this coherent backscattering peak into a pronounced dip, indicating destructive instead of constructive interference. We reproduce this result, obtained from the numerical integration of the Gross-Pitaevskii equation, by a diagrammatic theory of weak localization in the presence of nonlinearity.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | WEAK-LOCALIZATION; ANDERSON LOCALIZATION; MEDIA; WAVES; LIGHT; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 28 Oct 2020 08:53 |
| Last Modified: | 28 Oct 2020 08:53 |
| URI: | https://pred.uni-regensburg.de/id/eprint/30622 |
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