Entanglement and non-locality of three-qubit W states

Abstract

Abstract:

The threshold value of Svetlichny inequality of three-qubit W states was calculated. The analytic expression of nonlocality for W states was introduced. And the relation between three body entanglement and nonlocality has been investigated. The results show that three-qubit W states have unique three body entanglement and nonlocality. These results will provide theoretical foundation for the farther research of entangle feature and entangle dynamics of W states.

Key words: quantum optics, W states, three body entanglement, Svetlichny inequality, nonlocality

CLC Number:

O431.2

WANG Xiao-qin, LU Huai-xin, ZHAO Jia-qiang . Entanglement and non-locality of three-qubit W states[J]. J4, 2012, 29(5): 542-546.

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