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arXiv · 2507.19467

Persistent subradiant correlations in a random driven Dicke model

Nikita Leppenen·Alexander N. Poddubny
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Abstract

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.

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Nikita Leppenen, Alexander N. Poddubny. 2025-07-25. Persistent subradiant correlations in a random driven Dicke model. https://doi.org/10.1103/czf3-74sf

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