Nonequilibrium Josephson oscillations in Bose-Einstein condensates without dissipation
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| Type of Publication: | Journal article |
| URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-107596 |
| Author: | Trujillo-Martinez, Mauricio; Posazhennikova, Anna; Kroha, Johann |
| Year of publication: | 2009 |
| Published in: | Physical Review Letters ; 103 (2009), 10. - 105302 |
| ArXiv-ID: | arXiv:0903.5459v4 |
| DOI (citable link): | https://dx.doi.org/10.1103/PhysRevLett.103.105302 |
| Summary: |
We perform a detailed field theoretical study of nonequilibrium Josephson oscillations between interacting Bose-Einstein condensates confined in a finite-size double-well trap. We find that the Josephson junction can sustain multiple undamped Josephson oscillations up to a characteristic time scale tc without quasipartcles being excited in the system. This may explain recent related experiments. At larger times the dynamics of the junction is governed by fast Rabi oscillations between the descrete quasiparticle levels. We predict that a selftrapped BEC state will be destroyed by these Rabi oscillations.
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| Subject (DDC): | 530 Physics |
| Link to License: | In Copyright |
| Bibliography of Konstanz: | Yes |
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TRUJILLO-MARTINEZ, Mauricio, Anna POSAZHENNIKOVA, Johann KROHA, 2009. Nonequilibrium Josephson oscillations in Bose-Einstein condensates without dissipation. In: Physical Review Letters. 103(10), 105302. Available under: doi: 10.1103/PhysRevLett.103.105302
@article{TrujilloMartinez2009Noneq-4652, title={Nonequilibrium Josephson oscillations in Bose-Einstein condensates without dissipation}, year={2009}, doi={10.1103/PhysRevLett.103.105302}, number={10}, volume={103}, journal={Physical Review Letters}, author={Trujillo-Martinez, Mauricio and Posazhennikova, Anna and Kroha, Johann}, note={Article Number: 105302} }
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