摘要
We employ the coherent thermal states(a kind of entangled states)in thermal field dynamics to establisha complete entangled state formalism expressing pseudo-classical representations of density operator for light field.Especially,the relationship between the coherent thermal state and the characteristic function and the positive Prepresentation in quantum optics theory are obtained.
We employ the coherent thermal states(a kind of entangled states)in thermal field dynamics to establish a complete entangled state formalism expressing pseudo-classical representations of density operator for light field. Especially,the relationship between the coherent thermal state and the characteristic function and the positive P representation in quantum optics theory are obtained.
基金
the President Foundation of the Chinese Academy of Sciences
