Dynamical Casimir-Polder force between a two-level atom with different initial states and a dissipative cavity

Abstract

In this paper, a model of interaction between a two-level atom and a dissipative cavity is considered. The dynamical Casimir–Polder forces between the atom and the cavity wall in different initial states are discussed and analyzed. The quasimode theory is used to describe the electromagnetic field. The results show that the magnitude and properties of the dynamical Casimir–Polder force are different in different initial states of atoms. By adjusting the initial state of the atom properly, the dynamical Casimir–Polder force can also reach zero. This conclusion has important reference significance for the application of quantum information.