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The Journal of Atomic and Molecular Sciences

Deterministic Transfer for an Unknown Atomic Entangled State via Cavity QED

Yan Zhao, Yan-Lin Liao

Published Jan 1, 2010• 0 citations
Publisher

Abstract

We present a physics scheme for transferring an unknown atomic entangled state via cavity QED. In the transfer process the interaction between atoms and a single-mode nonresonant cavity with the assistance of a strong classical driving field (substitute) replace the Bell-state measurements. The scheme is insensitive to both the cavity decay and the thermal field. In addition, the success probability can reach 1.0 in our scheme.

DOI
10.4208/jams.112109.123009a

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We present a physics scheme for transferring an unknown atomic entangled state via cavity QED. In the transfer process the interaction between atoms and a single-mode nonresonant cavity with the assistance of a strong classical driving field (substitute) replace the Bell-state measurements. The scheme is insensitive to both the cavity decay and the thermal field. In addition, the success probability can reach 1.0 in our scheme.
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A scheme for the distant transfer of a qubit atomic state and atomic entangled states are presented.In the scheme,the identical two-level atoms interact simultaneously with a highly detuned cavity mode and are driven by a strong classical field,and the atomic state evolution is independent of cavity field state.Thus the scheme is insensitive to both the cavity decay and the thermal field and the requirement on the quality factor of the cavity is greatly loosened, which is of importance from the experimental point of view.