关键词: 量子光学, 量子纠缠, 腔量子电动力学, 量子点

Abstract:

A mathematical derivation was carried out about dynamics of the interaction between single phones and cavity-quantum dot system model and the mutual conversion was realized between the stationary qubit and flying qubit by numerical stimulation. The results show that the photon emitted from the cavity-quantum dot system is a smooth wave packet; by changing the parameters such as laser pulse time, the entanglement between the photon and atom in the quantum dot can be realized, which is the basis to realize the entanglement between atoms in different quantum dots. These results are important to solve such hot problems as the construction of the interface of quantum computers based on cavity-quantum dot system, the preparation of entangled states and the realization of controlled gates in the system.

Key words: quantum optics, quantum entanglement, cavity QED, quantum dots