Spin-dependent localization of spin-orbit and Rabi-coupled Bose-Einstein condensates in a random potential
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866910833726980096 |
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| author | Sarkar, Swarup K. Mardonov, Sh. Sherman, E. Ya. Muruganandam, Paulsamy Mishra, Pankaj K. |
| author_facet | Sarkar, Swarup K. Mardonov, Sh. Sherman, E. Ya. Muruganandam, Paulsamy Mishra, Pankaj K. |
| contents | We investigate the effect of the spin-orbit (SO) and Rabi couplings on the localization of the spin-1/2 condensate trapped in a one-dimensional random potential. Our studies reveal that the spin-dependent couplings create distinct localization regimes, resulting in various relations between localization and spin-related properties. First, we examine the localization in the linear condensate and find that the SO coupling can lead to a transition of the localized state from the "basin-like" to the "void" region of the potential. For a weak random potential upon an increase in the SO coupling, we find a re-entrant transition from a broad to narrow localized state and back at a higher SO coupling. Further, we analyze the competing role of inter-species and intra-species interactions on the localization of the condensate. We find the appearance of spin-dependent localization as the interactions increase beyond threshold values for a sufficiently strong disorder. Our findings on controlling spin-dependent localization may be useful for future ultracold atomic experiments and corresponding spin-related quantum technologies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_06005 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Spin-dependent localization of spin-orbit and Rabi-coupled Bose-Einstein condensates in a random potential Sarkar, Swarup K. Mardonov, Sh. Sherman, E. Ya. Muruganandam, Paulsamy Mishra, Pankaj K. Quantum Gases Atomic Physics We investigate the effect of the spin-orbit (SO) and Rabi couplings on the localization of the spin-1/2 condensate trapped in a one-dimensional random potential. Our studies reveal that the spin-dependent couplings create distinct localization regimes, resulting in various relations between localization and spin-related properties. First, we examine the localization in the linear condensate and find that the SO coupling can lead to a transition of the localized state from the "basin-like" to the "void" region of the potential. For a weak random potential upon an increase in the SO coupling, we find a re-entrant transition from a broad to narrow localized state and back at a higher SO coupling. Further, we analyze the competing role of inter-species and intra-species interactions on the localization of the condensate. We find the appearance of spin-dependent localization as the interactions increase beyond threshold values for a sufficiently strong disorder. Our findings on controlling spin-dependent localization may be useful for future ultracold atomic experiments and corresponding spin-related quantum technologies. |
| title | Spin-dependent localization of spin-orbit and Rabi-coupled Bose-Einstein condensates in a random potential |
| topic | Quantum Gases Atomic Physics |
| url | https://arxiv.org/abs/2410.06005 |