Fate of the spatial-temporal order under quantum fluctuation
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arXiv
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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866915008525369344 |
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| author | Nie, Xiaotian Zheng, Wei |
| author_facet | Nie, Xiaotian Zheng, Wei |
| contents | In a previous theoretical work [arXiv:2205.01461], T. Esslinger group proposed a scheme to realize a spatial-temporal lattice, which possesses dual periodicity on space and time, in a cavity-boson system pumped by a travelling wave laser. However, the prediction was made under the mean-field approximation. In this work, we investigate the dynamics beyond mean-field approximation. By including the fluctuation of the cavity field, we obtain a larger set of equations of motion. Numerical results show that the spatial-temporal lattice is melted in the mean-field level but survives in the quantum fluctuation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_04687 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Fate of the spatial-temporal order under quantum fluctuation Nie, Xiaotian Zheng, Wei Quantum Gases Quantum Physics In a previous theoretical work [arXiv:2205.01461], T. Esslinger group proposed a scheme to realize a spatial-temporal lattice, which possesses dual periodicity on space and time, in a cavity-boson system pumped by a travelling wave laser. However, the prediction was made under the mean-field approximation. In this work, we investigate the dynamics beyond mean-field approximation. By including the fluctuation of the cavity field, we obtain a larger set of equations of motion. Numerical results show that the spatial-temporal lattice is melted in the mean-field level but survives in the quantum fluctuation. |
| title | Fate of the spatial-temporal order under quantum fluctuation |
| topic | Quantum Gases Quantum Physics |
| url | https://arxiv.org/abs/2411.04687 |