| The constructed non-classical superposition state is used to study the quantum properties of the atoms interacting with the light field, it makes the theoretical study of quantum optics into more reality. Number-chaotic state is the constructed quantum field state and the drift quantum state between the number state and the thermal field, which can describe some attributes of the number state and thermal field, and can reveal some properties of the superimposed field caused by the number state and thermal field. So the number-chaotic state has important theoretical research value.Quantum properties in a system of atom for multi-photon transition interacting with the number-chaotic state light are studied by means of the full quantum theory in this paper. The content of the paper is organized as follows:Firstly, the concepts of the theories of the atomic inversion evolution negative intrinsic value method of quantum entanglement, and the NCS field state are introduced briefly in the first chapter.Secondly, the atomic inversion evolution in a system which is composed of a multi-photon transition moving two-level atom interacting with the number-chaotic state is studied by means of the full quantum theory. Influences of the atomic initial state, field-mode structure parameter, the average photon number of the chaotic state, the photon number of the number state and the values of the transitional photon number to the atomic inversion evolution in a system are also analyzed in this chapter.Thirdly, based on the method of negative Eigen values, the quantum entanglement characteristics of a system which is composed of a multi-photon transition two-level atom interacting with the number-chaotic state is studied by means of the full quantum theory. Influences of the photon number of the number state, the average photon number of the chaotic state, the values of the transitional photon number, and the atomic initial state to the quantum entanglement characteristics of a system are also analyzed in this chapter.Finally, further explored the quantum entanglement characteristics of a system which is the two identical two-level atoms interacting with the number-chaotic state light, using the method of negative Eigen values. Influences of the initial degree of entanglement of two entangled atoms, the photon number of the number state, and the average photon number of the chaotic state to the quantum entanglement characteristics of a system are also analyzed. |
