Paul, T. and Albert, M. and Schlagheck, P. and Leboeuf, P. and Pavloff, N. (2009) Anderson localization of a weakly interacting one-dimensional Bose gas. PHYSICAL REVIEW A, 80 (3): 033615. ISSN 1050-2947,
Full text not available from this repository.Abstract
We consider the phase coherent transport of a quasi-one-dimensional beam of Bose-Einstein condensed particles through a disordered potential of length L. Among the possible different types of flow we identified [T. Paul, P. Schlagheck, P. Leboeuf, and N. Pavloff, Phys. Rev. Lett. 98, 210602 (2007)], we focus here on the supersonic stationary regime where Anderson localization exists. We generalize the diffusion formalism of Dorokhov-Mello-Pereyra-Kumar to include interaction effects. It is shown that interactions modify the localization length and also introduce a length scale L* for the disordered region, above which most of the realizations of the random potential lead to time-dependent flows. A Fokker-Planck equation for the probability density of the transmission coefficient that takes this effect into account is introduced and solved. The theoretical predictions are verified numerically for different types of disordered potentials. Experimental scenarios for observing our predictions are discussed.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EINSTEIN CONDENSED GAS; MAGNETIC MICROTRAPS; CORRELATED DISORDER; MATTER-WAVES; POTENTIALS; DELOCALIZATION; FLUCTUATIONS; TRANSITION; CONDUCTORS; SCATTERING; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Sep 2020 07:08 |
| Last Modified: | 09 Sep 2020 07:08 |
| URI: | https://pred.uni-regensburg.de/id/eprint/28533 |
Actions (login required)
 |
View Item |
