Experimental realization of a fermionic spin-momentum lattice
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2022
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| _version_ | 1866914941825449984 |
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| author | Lauria, Paul Kuo, Wei-Ting Cooper, Nigel R. Barreiro, Julio T. |
| author_facet | Lauria, Paul Kuo, Wei-Ting Cooper, Nigel R. Barreiro, Julio T. |
| contents | We experimentally realize a spin-momentum lattice with a homogeneously trapped Fermi gas. The lattice is created via cyclically-rotated atom-laser couplings between three bare atomic spin states, and are such that they form a triangular lattice in a synthetic spin-momentum space. We demonstrate the lattice and explore its dynamics with spin- and momentum-resolved absorption imaging. This platform will provide new opportunities for synthetic spin systems and the engineering of topological bands. In particular, the use of three spin states in two spatial dimensions would allow the simulation of synthetic magnetic fields of high spatial uniformity, which would lead to ultra-narrow Chern bands that support robust fractional quantum Hall states. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2203_05543 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Experimental realization of a fermionic spin-momentum lattice Lauria, Paul Kuo, Wei-Ting Cooper, Nigel R. Barreiro, Julio T. Quantum Gases Atomic Physics We experimentally realize a spin-momentum lattice with a homogeneously trapped Fermi gas. The lattice is created via cyclically-rotated atom-laser couplings between three bare atomic spin states, and are such that they form a triangular lattice in a synthetic spin-momentum space. We demonstrate the lattice and explore its dynamics with spin- and momentum-resolved absorption imaging. This platform will provide new opportunities for synthetic spin systems and the engineering of topological bands. In particular, the use of three spin states in two spatial dimensions would allow the simulation of synthetic magnetic fields of high spatial uniformity, which would lead to ultra-narrow Chern bands that support robust fractional quantum Hall states. |
| title | Experimental realization of a fermionic spin-momentum lattice |
| topic | Quantum Gases Atomic Physics |
| url | https://arxiv.org/abs/2203.05543 |