Angular Momentum-Dependent Spectral Shift in Chiral Vacuum Cavities
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arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2023
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| _version_ | 1866909600051101696 |
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| author | Jiang, Qing-Dong |
| author_facet | Jiang, Qing-Dong |
| contents | Based on a hybrid light-matter unitary transformation for cavity quantum electrodynamics, we investigate the spectral shift of an atom induced by quantum fluctuations in a chiral vacuum cavity. Remarkably, we find an intriguing angular momentum-dependent shift in the spectra of bound states. Our approach shows promise in going beyond traditional perturbative methods and demonstrates effectiveness even in the strong-coupling limit, as evidenced by our numerical benchmarks in the case of a two-dimensional quantum harmonic oscillator. In addition, we establish a cavity-interaction picture for calculating the chiral vacuum Rabi oscillation in the strong-coupling limit for a generic central potential. The anomalous spectral shift revealed in this study possesses both fundamental and practical significance and could be readily observed in experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_14964 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Angular Momentum-Dependent Spectral Shift in Chiral Vacuum Cavities Jiang, Qing-Dong Quantum Physics Mesoscale and Nanoscale Physics Quantum Gases Optics Based on a hybrid light-matter unitary transformation for cavity quantum electrodynamics, we investigate the spectral shift of an atom induced by quantum fluctuations in a chiral vacuum cavity. Remarkably, we find an intriguing angular momentum-dependent shift in the spectra of bound states. Our approach shows promise in going beyond traditional perturbative methods and demonstrates effectiveness even in the strong-coupling limit, as evidenced by our numerical benchmarks in the case of a two-dimensional quantum harmonic oscillator. In addition, we establish a cavity-interaction picture for calculating the chiral vacuum Rabi oscillation in the strong-coupling limit for a generic central potential. The anomalous spectral shift revealed in this study possesses both fundamental and practical significance and could be readily observed in experiments. |
| title | Angular Momentum-Dependent Spectral Shift in Chiral Vacuum Cavities |
| topic | Quantum Physics Mesoscale and Nanoscale Physics Quantum Gases Optics |
| url | https://arxiv.org/abs/2307.14964 |