Paul, Tobias and Richter, Klaus and Schlagheck, Peter (2005) Nonlinear resonant transport of Bose-Einstein condensates. PHYSICAL REVIEW LETTERS, 94 (2): 020404. ISSN 0031-9007,
Full text not available from this repository.Abstract
The coherent flow of a Bose-Einstein condensate through a quantum dot in a magnetic waveguide is studied. By the numerical integration of the time-dependent Gross-Pitaevskii equation in the presence of a source term, we simulate the propagation process of the condensate through a double barrier potential in the waveguide. We find that resonant transport is suppressed in interaction-induced regimes of bistability, where multiple scattering states exist at the same chemical potential and the same incident current. We demonstrate, however, that a temporal control of the external potential can be used to circumvent this limitation and to obtain enhanced transmission near the resonance on experimentally realistic time scales.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ATOMS; GAS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 31 May 2021 08:52 |
| Last Modified: | 31 May 2021 08:52 |
| URI: | https://pred.uni-regensburg.de/id/eprint/36583 |
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