Purification of single-photon entanglement with linear optics

被引：33
|
作者：
Sangouard, Nicolas [1 ]
Simon, Christoph [2 ]
Coudreau, Thomas [1 ]
Gisin, Nicolas [2 ]
机构：
[1] Univ Paris 07, Lab MPQ, UMR CNRS 7162, F-75221 Paris 05, France
[2] Univ Geneva, Appl Phys Grp, CH-1211 Geneva 4, Switzerland
来源：
PHYSICAL REVIEW A | 2008年 / 78卷 / 05期
关键词：
D O I：
10.1103/PhysRevA.78.050301
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We show that single-photon entangled states of the form parallel to 0 >parallel to 1 >+parallel to 1 >parallel to 0 > can be purified with a simple linear-optics-based protocol, which is eminently feasible with current technology. Besides its conceptual interest, this result is relevant for attractive quantum repeater protocols.
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页数：4
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