Many-body phases from effective geometrical frustration and long-range interactions in a subwavelength lattice
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866908429651542016 |
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| author | Burba, Domantas Juzeliūnas, Gediminas Spielman, Ian B. Barbiero, Luca |
| author_facet | Burba, Domantas Juzeliūnas, Gediminas Spielman, Ian B. Barbiero, Luca |
| contents | Geometrical frustration and long-range couplings are key contributors to create quantum phases with different properties throughout physics. We propose a scheme where both ingredients naturally emerge in a Raman induced subwavelength lattice. We first demonstrate that Raman-coupled multicomponent quantum gases can realize a highly versatile frustrated Hubbard Hamiltonian with long-range interactions. The deeply subwavelength lattice period leads to strong long-range interparticle repulsion with tunable range and decay. We numerically demonstrate that the combination of frustration and long-range couplings generates many-body phases of bosons, including a range of density-wave and superfluid phases with broken translational and time reversal symmetries, respectively. Our results thus represent a powerful approach for efficiently combining long-range interactions and frustration in quantum simulations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_01443 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Many-body phases from effective geometrical frustration and long-range interactions in a subwavelength lattice Burba, Domantas Juzeliūnas, Gediminas Spielman, Ian B. Barbiero, Luca Quantum Gases Quantum Physics Geometrical frustration and long-range couplings are key contributors to create quantum phases with different properties throughout physics. We propose a scheme where both ingredients naturally emerge in a Raman induced subwavelength lattice. We first demonstrate that Raman-coupled multicomponent quantum gases can realize a highly versatile frustrated Hubbard Hamiltonian with long-range interactions. The deeply subwavelength lattice period leads to strong long-range interparticle repulsion with tunable range and decay. We numerically demonstrate that the combination of frustration and long-range couplings generates many-body phases of bosons, including a range of density-wave and superfluid phases with broken translational and time reversal symmetries, respectively. Our results thus represent a powerful approach for efficiently combining long-range interactions and frustration in quantum simulations. |
| title | Many-body phases from effective geometrical frustration and long-range interactions in a subwavelength lattice |
| topic | Quantum Gases Quantum Physics |
| url | https://arxiv.org/abs/2409.01443 |