No oscillating subradiant correlations in a strongly driven quantum emitter array
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866912590041448448 |
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| author | Shi, Jiaming Leppenen, Nikita Tessler, Ran Poddubny, Alexander N. |
| author_facet | Shi, Jiaming Leppenen, Nikita Tessler, Ran Poddubny, Alexander N. |
| contents | 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 $\{λ\}$ of the Liouvillian superoperator, which determines the correlation decay rates $-\Re λ$ and the frequencies $\Imλ$. Our main finding is the suppression of subradiant oscillating correlations between atomic states by a strong coherent drive of amplitude $Ω$: $|\Re λ|\ge mγ/2$, where $γ$ is the single-atom spontaneous decay rate and $m=|\Im λ/(2Ω)|$ is a nonzero integer for correlations oscillating in time $\propto \exp(\pm 2i m|Ω| t)$. 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. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2509_09993 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | No oscillating subradiant correlations in a strongly driven quantum emitter array Shi, Jiaming Leppenen, Nikita Tessler, Ran Poddubny, Alexander N. Quantum Physics Optics 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 $\{λ\}$ of the Liouvillian superoperator, which determines the correlation decay rates $-\Re λ$ and the frequencies $\Imλ$. Our main finding is the suppression of subradiant oscillating correlations between atomic states by a strong coherent drive of amplitude $Ω$: $|\Re λ|\ge mγ/2$, where $γ$ is the single-atom spontaneous decay rate and $m=|\Im λ/(2Ω)|$ is a nonzero integer for correlations oscillating in time $\propto \exp(\pm 2i m|Ω| t)$. 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. |
| title | No oscillating subradiant correlations in a strongly driven quantum emitter array |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2509.09993 |