Collapsing dynamics of attractive Bose-Einstein condensates in random potentials
Fuente:
arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866913585504976896 |
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| author | Kamel, Madjda Boudjemaa, Abdelaali |
| author_facet | Kamel, Madjda Boudjemaa, Abdelaali |
| contents | We study the stationary and dynamical properties of three-dimensional trapped Bose-Einstein condensates with attractive interactions subjected to a random potential. To this end, a variational method is applied to solve the underlying Gross-Pitaevskii equation. We derive analytical predictions for the energy, the equilibrium width, and evolution laws of the condensate parameter. The breathing mode oscillations frequency of the condensate has been also calculated in terms of the gas and disorder parameters. We analyze in addition the dynamics of collapse from the Gaussian approximation. Surprisingly, we find that the intriguing interplay of the attractive interaction and disorder effects leads to prevent collapse of the condensate. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_16825 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Collapsing dynamics of attractive Bose-Einstein condensates in random potentials Kamel, Madjda Boudjemaa, Abdelaali Quantum Gases Disordered Systems and Neural Networks We study the stationary and dynamical properties of three-dimensional trapped Bose-Einstein condensates with attractive interactions subjected to a random potential. To this end, a variational method is applied to solve the underlying Gross-Pitaevskii equation. We derive analytical predictions for the energy, the equilibrium width, and evolution laws of the condensate parameter. The breathing mode oscillations frequency of the condensate has been also calculated in terms of the gas and disorder parameters. We analyze in addition the dynamics of collapse from the Gaussian approximation. Surprisingly, we find that the intriguing interplay of the attractive interaction and disorder effects leads to prevent collapse of the condensate. |
| title | Collapsing dynamics of attractive Bose-Einstein condensates in random potentials |
| topic | Quantum Gases Disordered Systems and Neural Networks |
| url | https://arxiv.org/abs/2411.16825 |