QUANTUM ENTANGLEMENT OF THREE ATOMS INDUCED BY FOCK STATE

Xiuwu Wang () and Xiaohong Zhang
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Xiuwu Wang: School of Science, North China Electricity Power University, Baoding, 071003, China
Xiaohong Zhang: School of Science, North China Electricity Power University, Baoding, 071003, China

International Journal of Modern Physics C (IJMPC), 2008, vol. 19, issue 05, 775-783

Abstract: In this paper, we study the quantum entanglement of three two-level atoms under the action of Fock state of a single-mode quantized radiation field. Milburn model is considered. Concurrence of the two atoms is given explicitly. As is expected, because of the intrinsic decoherence, Concurrence comes to a stationary value. A rule is summarized between this value and entanglement sudden death. As for the potential measurement of multi-particle entanglement, spin squeezing parameter is calculated.

Keywords: Entanglement; intrinsic decoherence; Concurrence; spin squeezing; 03.65.Ud; 03.67.-a; 42.50.Dv (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1142/S0129183108012492

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