Two-photon statistics of nonclassical radiation in the dissipative finite-size Dicke model
He-Guang Xu, Chen Wang, Xian-Long Gao · Journal of Physics B Atomic Molecular and Optical Physics · 2020
Abstract The nonclassical feature of photons in the open finite-size Dicke model is investigated via the two-photon correlation function. The quantum dressed master equation combined with the extended coherent photonic states is applied to analyze the dissipative dynamics of both the photons and qubits. The antibunching to bunching transition of photons is clearly observed by tuning the qubit–photon coupling strength. The optimal qubit number is unraveled to enhance the two-photon correlation function. Moreover, the temperature bias of thermal baths induces significant two-photon bunching signature with deep strong qubit–photon interaction.