Entanglement distillation for atomic states via cavity QED
Entanglement distillation for atomic states via cavity QED
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DOI:
10.1016/j.physa.2004.04.108
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发表时间:
2003-07
影响因子:
3.3
通讯作者:
Z. Cao;Ming Yang
中科院分区:
文献类型:
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作者:
Z. Cao;Ming Yang
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.