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International Journal of Quantum Information

ENTANGLEMENT CONCENTRATION AND A QUANTUM REPEATER IN CAVITY QED

Ye Liu, Guang‐Can Guo

Published May 31, 2005• 1 citation
Publisher

Abstract

A scheme of quantum concentration for unknown atomic entangled states via cavity QED is proposed. During the preparation and the joint measurement of quantum states, the cavity is only virtually excited; thus, the scheme is insensitive to the cavity field states and the cavity decay. In the meanwhile, our setup also provides a demonstration of a quantum repeater in cavity QED in principle.

DOI
10.1142/s0219749905001018

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A scheme of quantum concentration for unknown atomic entangled states via cavity QED is proposed. During the preparation and the joint measurement of quantum states, the cavity is only virtually excited; thus, the scheme is insensitive to the cavity field states and the cavity decay. In the meanwhile, our setup also provides a demonstration of a quantum repeater in cavity QED in principle.
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