The Study Of The Field Entropy In Two Extended J-C Models

The interaction of the field and the atom is the main content in quantum optics field. The Jaynes-Cummings(J-C) model which describes the interaction of a single two-level atom with a single model is the basic theoretical model. In the rotating wave approximation, J-C model cannot only be solved exactly, but also reveal the mechanism of the quantum properties of the interaction of the atom with the field. So considerable attention has been devoted to the study of the quantum properties of the intensity-dependent coupling J-C model with atomic motion, and the two -photon J-C model with an added Kerr medium which are the two important extensions to the J-C model. In this paper, the dynamical properties of the field entropy evolution in the intensity-dependent coupling J-C model with atomic motion and the entropy squeezing properties in the two-photon J-C model with an added Kerr medium are studied, and a series of significant results are obtained. This paper is made of three chapters.In the first chapter, a simple history overview is presented of the development of the entropy, the entropy squeezing, and J-C model.In the second chapter, the dynamical properties of the field entropy evolution in the intensity-dependent coupling J-C model with atomic motion are studied by means of the quantum theory. The influence of atomic coherence, the atomic motion and the field-model structure on the evolution of the field is examined. The...