Generation of a Kind of Displaced Thermal States in the Diffusion Process and its Statistical Properties.

This paper proposes a kind of displaced thermal states (DTS) and explores how this kind of optical field emerges using the entangled state representation. The results show that the DTS can be generated by a coherent state passing through a diffusion channel with the diffusion coefficient ϰ only when there exists ϰt=eℏν/kBT−1−1<inline-graphic></inline-graphic>. Also, its statistical properties, such as mean photon number, Wigner function and entropy, are investigated. [ABSTRACT FROM AUTHOR]