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Chinese Physics B

Quantum entanglement in the mode-mode competition system

Qin Wu, Mao-Fa Fang, Feng Yong-Zhen, Yao-Hua Hu

Published Aug 1, 2008• 4 citations
Publisher

Abstract

Considering a two-level atom interacting with the competing two-mode field, this paper investigates the entanglement between the two-level atom and the two-mode field by using the quantum reduced entropy, and that between the two-mode field by using the quantum relative entropy of entanglement. It shows that the two kinds of entanglement are dependent on the relative coupling strength of atom-field and the atomic distribution, and exhibit the periodical evolution. The maximal atom–field entanglement state can be prepared via the appropriate selection of system parameters and interaction time.

DOI
10.1088/1674-1056/17/8/033

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