Quantum many-body analysis of spin-2 bosons with two-body inelastic decay
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866908871159709696 |
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| author | Takahashi, Takeshi Saito, Hiroki |
| author_facet | Takahashi, Takeshi Saito, Hiroki |
| contents | Bose-Einstein condensates of $^{87}\mathrm{Rb}$ atoms with a hyperfine spin of 2 are open quantum systems, where the atoms are lost through two-body inelastic collisions. In this dissipation process, a collision channel with total spin of 4 is forbidden by angular momentum conservation, which results in magnetization of the atoms remaining in the condensate. Here, we investigate the quantum many-body properties of spin-2 bosons that undergo two-body atomic loss. We show that the system finally reaches a steady state, which is a mixture of the states with maximum total spins. In addition, we find that a nonclassical steady state can be obtained by applying and quenching the quadratic Zeeman field. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_10050 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum many-body analysis of spin-2 bosons with two-body inelastic decay Takahashi, Takeshi Saito, Hiroki Quantum Gases Bose-Einstein condensates of $^{87}\mathrm{Rb}$ atoms with a hyperfine spin of 2 are open quantum systems, where the atoms are lost through two-body inelastic collisions. In this dissipation process, a collision channel with total spin of 4 is forbidden by angular momentum conservation, which results in magnetization of the atoms remaining in the condensate. Here, we investigate the quantum many-body properties of spin-2 bosons that undergo two-body atomic loss. We show that the system finally reaches a steady state, which is a mixture of the states with maximum total spins. In addition, we find that a nonclassical steady state can be obtained by applying and quenching the quadratic Zeeman field. |
| title | Quantum many-body analysis of spin-2 bosons with two-body inelastic decay |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2510.10050 |