No oscillating subradiant correlations in a strongly driven quantum emitter array

• URL: http://arxiv.org/abs/2509.09993v2
• Date: Wed, 17 Sep 2025 05:51:49 GMT
• Title: No oscillating subradiant correlations in a strongly driven quantum emitter array
• Authors: Jiaming Shi, Nikita Leppenen, Ran Tessler, Alexander N. Poddubny,
• Abstract summary: We study time-dependent correlations in a strongly driven array of atoms, coupled to photons in a waveguide.<n>Our main finding is the suppression of subradiant oscillating correlations between atomic states by a strong coherent drive of amplitude.<n>We provide a rigorous proof based on the analytical decomposition of the Liouvillian using spectral theory of simplicial complexes and posets.
• Score: 39.146761527401424
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We theoretically study time-dependent correlations in a strongly driven array of $N$ two-level atoms, coupled to photons in a waveguide. We focus on the spectrum $\{\lambda\}$ of the Liouvillian superoperator, which determines the correlation decay rates $-\Re \lambda$ and the frequencies $\Im\lambda$. Our main finding is the suppression of subradiant oscillating correlations between atomic states by a strong coherent drive of amplitude $\Omega$: $|\Re \lambda|\ge m\gamma/2$, where $\gamma$ is the single-atom spontaneous decay rate and $m=|\Im \lambda/(2\Omega)|$ is a nonzero integer for correlations oscillating in time $\propto \exp(\pm 2i m|\Omega| t)$. This limit is independent of the number of atoms $N$; it holds both for small arrays and in the macroscopic limit. We demonstrate the suppression of subradiance numerically and provide a rigorous proof based on the analytical decomposition of the Liouvillian using spectral theory of simplicial complexes and posets.

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