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Large-N limit of spontaneous superradiance

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arxiv 2202.05197 v2 pith:SART527S submitted 2022-02-10 quant-ph physics.atom-ph

Large-N limit of spontaneous superradiance

classification quant-ph physics.atom-ph
keywords limitexactonlysuperradiancesystemaccuracyadditionalasymptotically
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We investigate the thermodynamic limit of Dicke superradiance. We find an expression for the system's density matrix that we can prove is exact in the limit of large atom numbers N. This is in contrast to previously known solutions whose accuracy has only been established numerically and that are valid only for a range of times. We also introduce an asymptotically exact solution when the system is subject to additional incoherent decay of excitations as this is a common occurrence in experiment.

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