Controlling Quantum Properties Of Atoms Inside A Cavity And Light Field Via Manipulating An Atom Outside The Cavity

In this paper, controlling quantum properties of atoms inside cavity and the light field via the state-selective measurement on the atom outside the cavity was researched. In the last literatures which researching the quantum characteristic of the atomic selective measurement are rarely consider the issue of the atomic motion of the motion of atoms, we give special consideration to the impact of the atomic motion of cavity atoms and quantum properties of light field. The differences result from atomic motion was considered in the different mode field. In this paper, we mainly study the quantum properties involved:Negativity entropy(entanglement properties between atoms), Von Neuman entropy(entanglement properties between atom and ligh), squeezed property of light field operator, dipole squeezing of atomic operator and dipole amplitude square squeezing of atomic operatorThe main content of this paper is as follows:Chapter1introduction, mainly introduce the development of quantum optics and the current research directions of quantum optics.The second chapter mainly introduces the interaction theory of atom and light field, more detailed introduces the dick model, the jaynes-cummings model, and T-C model.The third chapter mainly introduces the properties of entanglement, and the types of entanglement such as:the entanglement properties of between atoms of the Negativity entropy, the entanglement properties between the atoms and field of the Von Neuman entropy. Which also introduced some of the more famous entangled state, such as GHZ states, Bell and W state, etc.The fourth chapter is divided into three sections to discuss the quantum properties of atoms inside the cavity and light field. The first section considers the initial in the W state of three two-level atoms interacting with a single-mode light field, Ignore the dipole interaction between atoms,via selective measuring, the parameters of the atom and light field impact on atomic entropy and the light field entropy is researched. The second section considers the initial in the GHZ state of three two-level atoms interacting with a two-mode light field, Considering the dipole interaction between atoms,we analysis the atomic entropy, the light field entropy and squeezed of light field operator. The last section considers the initial in the Bell state of two three-level atoms interacting with a single--mode light field, dipole squeezing of atomic operator and dipole amplitude square squeezing of atomic operator are studied. Atomic motion was taking into account in the above content.Chapter5conclusion and prospect...