Stationary vortex flows and macroscopic Zeno effect in Bose-Einstein condensates with localized dissipation
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| Format: | Preprint |
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2014
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| _version_ | 1866910629448646656 |
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| author | Zezyulin, Dmitry A. Konotop, Vladimir V. |
| author_facet | Zezyulin, Dmitry A. Konotop, Vladimir V. |
| contents | We theoretically demonstrate a possibility to observe the macroscopic Zeno effect in an effectively two-dimensional (pancake-shaped) repulsive Bose--Einstein condensate subjected to a strong narrow dissipation. We show that the dissipation can generate stable stationary nonlinear flows which bear either zero or non-zero topological charge (vorticity). The superfluid flows towards the dissipative defect compensate the atomic losses. The macroscopic Zeno effect manifests itself in a nonmonotonous dependence of the inward current density on the strength of the dissipation. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_1411_7948 |
| institution | arXiv |
| publishDate | 2014 |
| record_format | arxiv |
| spellingShingle | Stationary vortex flows and macroscopic Zeno effect in Bose-Einstein condensates with localized dissipation Zezyulin, Dmitry A. Konotop, Vladimir V. Quantum Gases We theoretically demonstrate a possibility to observe the macroscopic Zeno effect in an effectively two-dimensional (pancake-shaped) repulsive Bose--Einstein condensate subjected to a strong narrow dissipation. We show that the dissipation can generate stable stationary nonlinear flows which bear either zero or non-zero topological charge (vorticity). The superfluid flows towards the dissipative defect compensate the atomic losses. The macroscopic Zeno effect manifests itself in a nonmonotonous dependence of the inward current density on the strength of the dissipation. |
| title | Stationary vortex flows and macroscopic Zeno effect in Bose-Einstein condensates with localized dissipation |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/1411.7948 |