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International Journal of Quantum Information

ENTANGLEMENT CRITERION FOR COHERENT SUBTRACTION AND COHERENT ADDITION OF BIPARTITE CONTINUOUS VARIABLE STATES

Li-zhen Jiang, Xiaoyu Chen, Tian-Yu Ye, Fang-Yu Hong, Liang-neng Wu

Published Sep 1, 2013• 1 citation
Publisher

Abstract

We study the entanglement conditions of two quite general classes of two-mode non-Gaussian states. Using computable cross norm and realignment criterion, we obtain the sufficient conditions of entanglement for coherently added or subtracted two-mode squeezed thermal states, and the sufficient condition of entanglement for any photon number entangled state (PNES) evolving in a thermal noise and amplitude damping channel.

DOI
10.1142/s0219749913500603

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