Entanglement distillation for atomic states via cavity QED

Ming Yang, Wei Song and Zhuo-Liang Cao

Physica A: Statistical Mechanics and its Applications, 2004, vol. 341, issue C, 251-261

Abstract: Following a recent proposal (Phys. Rev. Lett. 85 (2000) 2392) about quantum information processing using dispersive atom–cavity interaction, in this paper, we proposed a physical scheme to concentrate the pure non-maximally entangled atomic states via cavity QED by using atomic collision in a far-off-resonant cavity. The most distinctive advantage of our scheme is that there is no excitation of cavity mode during the distillation procedure. Therefore the requirement on the quality of cavity is greatly loosened.

Keywords: Entangled atomic states; Far-off-resonant interaction; Entanglement distillation protocol; Cavity QED (search for similar items in EconPapers)
Date: 2004
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:341:y:2004:i:c:p:251-261

DOI: 10.1016/j.physa.2004.04.108

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