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- W2895996961 abstract "We investigate the dynamical properties of the finite-size Dicke model coupled to a photon reservoir in the dispersive regime. The system-reservoir coupling in our Hamiltonian includes counter-rotating terms, which are relevant in the strong atom-cavity coupling. Because the dispersive regime is considered, the dynamics of low-energy states are described sufficiently accurately within the finite-dimensional subspace of the dressed states. Using the separation of the time scales between the system and the reservoir, we derive the Markovian quantum master equation in the subspace without ignoring the counter-rotating terms. The temporal evolution of the expectation of the cavity mode shows that the bifurcation of the long-lived state corresponds to the superradiant transition in the isolated model. The master equation explicitly gives the steady state solution. The numerical results for the first-order correlation function on the steady state indicate that the strong atom-cavity coupling enhances the coherence and softens the dephasing in the superradiant region." @default.
- W2895996961 created "2018-10-26" @default.
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- W2895996961 date "2019-02-15" @default.
- W2895996961 modified "2023-10-16" @default.
- W2895996961 title "Dynamical Properties of the Finite-size Dicke Model Coupled to a Thermal Reservoir" @default.
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- W2895996961 doi "https://doi.org/10.7566/jpsj.88.024401" @default.
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