Phase Diagram of Spin-3/2 Fermions in One Dimensional Optical Lattices
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arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866913607443283968 |
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| author | Milner, Samuel J. Feiguin, Adrian E. |
| author_facet | Milner, Samuel J. Feiguin, Adrian E. |
| contents | We present a density matrix renormalization group(DMRG) study of a generalized Hubbard chain describing effective spin S=3/2 fermions in an optical lattice.We determine the full phase diagram for the SU(4) symmetric case, and in the presence of single-ion anisotropy in terms of density and polarization.We investigate the stability and competition between different orders, such as quintet Fulde-Ferrell-Larkin-Ovchinnikov(FFLO) pairing, trion and quartet formation, and spin and atomic density waves.Notably, near half-filling, single-ion anisotropy stabilizes a correlated phase that can be understood in terms of a generalized S=2 bosonic t-J chain. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_07900 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Phase Diagram of Spin-3/2 Fermions in One Dimensional Optical Lattices Milner, Samuel J. Feiguin, Adrian E. Quantum Gases Strongly Correlated Electrons We present a density matrix renormalization group(DMRG) study of a generalized Hubbard chain describing effective spin S=3/2 fermions in an optical lattice.We determine the full phase diagram for the SU(4) symmetric case, and in the presence of single-ion anisotropy in terms of density and polarization.We investigate the stability and competition between different orders, such as quintet Fulde-Ferrell-Larkin-Ovchinnikov(FFLO) pairing, trion and quartet formation, and spin and atomic density waves.Notably, near half-filling, single-ion anisotropy stabilizes a correlated phase that can be understood in terms of a generalized S=2 bosonic t-J chain. |
| title | Phase Diagram of Spin-3/2 Fermions in One Dimensional Optical Lattices |
| topic | Quantum Gases Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2412.07900 |