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Communications in Theoretical Physics

Entanglement Purification Through Cavity Input-Output Process

Xiaolong Zhang, Feng Mang, Gao Ke-Lin

Published Aug 1, 2008• 2 citations
Publisher

Abstract

We propose a scheme to purify entanglement of two atoms from not-too-impure entangled states by checking the parity of the two atoms through the cavity input-output process. As the parity check is made by measurement on single-photon polarization, which would not affect the entanglement of the two atoms, our scheme has the successful probability double of that in a previous well-known scheme with linear optical elements [Nature (London) 410 (2001) 1067], and is insensitive to the photon loss and the detection inefficiency. Experimental feasibility of our scheme with current technology is discussed.

DOI
10.1088/0253-6102/50/2/14

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