Persistent subradiant correlations in a random driven Dicke model
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866914340479696896 |
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| author | Leppenen, Nikita Poddubny, Alexander N. |
| author_facet | Leppenen, Nikita Poddubny, Alexander N. |
| contents | We study theoretically the driven-dissipative dynamics of an array of two-level emitters, coupled to a single photonic mode, in the presence of disorder in the resonant frequencies. We introduce the notion of subradiant correlations in the dynamics, corresponding to the eigenstates of the Liouvillian with a low decay rate, that can also oscillate in time. While the usual collective subradiant states do not survive the emitter resonant frequency fluctuations, these subradiant correlations are immune to such a type of disorder. These long-living correlations exist in finite-size systems, when their lifetime is parametrically longer than in the so-called Dicke time crystal phase. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_19467 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Persistent subradiant correlations in a random driven Dicke model Leppenen, Nikita Poddubny, Alexander N. Quantum Physics We study theoretically the driven-dissipative dynamics of an array of two-level emitters, coupled to a single photonic mode, in the presence of disorder in the resonant frequencies. We introduce the notion of subradiant correlations in the dynamics, corresponding to the eigenstates of the Liouvillian with a low decay rate, that can also oscillate in time. While the usual collective subradiant states do not survive the emitter resonant frequency fluctuations, these subradiant correlations are immune to such a type of disorder. These long-living correlations exist in finite-size systems, when their lifetime is parametrically longer than in the so-called Dicke time crystal phase. |
| title | Persistent subradiant correlations in a random driven Dicke model |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2507.19467 |