Phase separation and metastability in a mixture of spin-1 and spin-2 Bose-Einstein condensates
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| Format: | Preprint |
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2024
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| _version_ | 1866913518980169728 |
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| author | Le, Uyen Ngoc Le, Hieu Binh Saito, Hiroki |
| author_facet | Le, Uyen Ngoc Le, Hieu Binh Saito, Hiroki |
| contents | We investigate the ground state and dynamics of a mixture of spin-1 and spin-2 Bose-Einstein condensates of ${}^{87}{\rm{Rb}}$ atoms. For the experimentally measured interaction coefficients, the ground state exhibits phase separation between the spin-1 ferromagnetic state and the spin-2 nematic state. At the interface between them, a partially polarized spin state emerges. The uniformly mixed state of the spin-1 polar state and spin-2 biaxial nematic state is metastable, and the phase separation via nucleation can be triggered by a local perturbation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_14791 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Phase separation and metastability in a mixture of spin-1 and spin-2 Bose-Einstein condensates Le, Uyen Ngoc Le, Hieu Binh Saito, Hiroki Quantum Gases We investigate the ground state and dynamics of a mixture of spin-1 and spin-2 Bose-Einstein condensates of ${}^{87}{\rm{Rb}}$ atoms. For the experimentally measured interaction coefficients, the ground state exhibits phase separation between the spin-1 ferromagnetic state and the spin-2 nematic state. At the interface between them, a partially polarized spin state emerges. The uniformly mixed state of the spin-1 polar state and spin-2 biaxial nematic state is metastable, and the phase separation via nucleation can be triggered by a local perturbation. |
| title | Phase separation and metastability in a mixture of spin-1 and spin-2 Bose-Einstein condensates |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2404.14791 |