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International Journal of Quantum Information

Dynamics of bell-nonlocality for two atoms interacting with a vacuum multi-mode noise field

Yujie Liu, Zheng Li, Dongmei Han, Huan-Lin Lü, Tai-Yu Zheng

Published Apr 1, 2016• 3 citations
Publisher

Abstract

We investigate the internal-state Bell nonlocal entanglement dynamics, as measured by CHSH inequality of two atoms interacting with a vacuum multi-mode noise field by taking into account the spatial degrees of freedom of the two atoms. The dynamics of Bell nonlocality of the atoms with the atomic internal states being initially in a Werner-type state is studied, by deriving the analytical solutions of the Schrödinger equation, and tracing over the degrees of freedom of the field and the external motion of the two atoms. In addition, through comparison with entanglement as measured by concurrence, we find that the survival time of entanglement is much longer than that of the Bell-inequality violation. And the comparison of the quantum correlation time between two Werner-type states is discussed.

DOI
10.1142/s0219749916500118

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