【作者单位】a Institute of Theoretical Physics, Shanxi University, Taiyuan, Shanxi 030006, China b Department of Physics, Taiyuan Normal University, Taiyuan, Shanxi 030001, China
【摘要】 We in this paper derive the analytical expressions of ground-state energy, average photon-number, and the atomic population by means of the spin-coherent-state variational method for arbitrary number of atoms in an optomechanical cavity. It is found ...