Linking the Dynamical Casimir Effect to the Collective Excitation Effect at Finite Temperature

Thermal effects on the dynamical Casimir effect and the collective excitation effect are investigated in a resonantly vibrating cavity filled with an ensemble of two-level atoms. The results show that the moving mirror of the cavity results in the dynamical Casimir effect and the collective excitation effect of the two-level atoms,and the finite temperature enhances the number of created photons and created excitons by several orders of magnitude. The relevance experiments of the finite-temperature effects for the dynamical Casimir effect and the collective excitation effect are addressed.