Complementary Collective Spin Descriptions of Superradiant Ramsey Spectroscopy
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866909610771742720 |
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| author | Gao, Ke-Xin Zhang, Yuan Su, Shi-Lei Chen, Gang Shan, Chongxin Mølmer, Klaus |
| author_facet | Gao, Ke-Xin Zhang, Yuan Su, Shi-Lei Chen, Gang Shan, Chongxin Mølmer, Klaus |
| contents | A recent experiment demonstrated delayed superradiance from strontium-88 atoms, which are coupled to a longitudinal mode of a cavity while being excited by laser pulses propagating along a transversal direction [Nat. Commun. 15, 1084 (2024)]. A coherent picture of the atomic ensemble dynamics in this experiment requires complementary representations of the external driving dynamics and the superradiant dynamics. To complement previous analyses, we introduce these representations by considering in-phase and out-of-phase superpositions of transverse collective spin components of two atomic sub-ensembles, and analyze the dynamics with the corresponding collective Dicke states and Bloch vectors. This approach also explains Ramsey spectroscopy experiments with the ensemble, and it may be employed to explore other phenomena, such as weak-to-strong coupling phase transitions and triggered superradiance. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_11580 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Complementary Collective Spin Descriptions of Superradiant Ramsey Spectroscopy Gao, Ke-Xin Zhang, Yuan Su, Shi-Lei Chen, Gang Shan, Chongxin Mølmer, Klaus Quantum Physics A recent experiment demonstrated delayed superradiance from strontium-88 atoms, which are coupled to a longitudinal mode of a cavity while being excited by laser pulses propagating along a transversal direction [Nat. Commun. 15, 1084 (2024)]. A coherent picture of the atomic ensemble dynamics in this experiment requires complementary representations of the external driving dynamics and the superradiant dynamics. To complement previous analyses, we introduce these representations by considering in-phase and out-of-phase superpositions of transverse collective spin components of two atomic sub-ensembles, and analyze the dynamics with the corresponding collective Dicke states and Bloch vectors. This approach also explains Ramsey spectroscopy experiments with the ensemble, and it may be employed to explore other phenomena, such as weak-to-strong coupling phase transitions and triggered superradiance. |
| title | Complementary Collective Spin Descriptions of Superradiant Ramsey Spectroscopy |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2503.11580 |