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Article overview
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Experimental Realization of Entanglement Concentration and A Quantum Repeater | | Zhi Zhao
; Tao Yang
; Yu-Ao Chen
; An-Ning Zhang
; Jian-Wei Pan
; | | Date: |
22 Dec 2002 | | Subject: | quant-ph | | Abstract: | We report an experimental realization of entanglement concentration using two polarization-entangled photon pairs produced by pulsed parametric down-conversion. In the meantime, our setup also provides a proof-in-principle demonstration of a quantum repeater. The quality of our procedure is verified by observing a violation of Bell’s inequality by more than 5 standard deviations. The high experimental accuracy achieved in the experiment implies that the requirement of tolerable error rate in multi-stage realization of quantum repeaters can be fulfilled, hence providing a practical toolbox for quantum communication over large distances. | | Source: | arXiv, quant-ph/0301118 | | Other source: | [GID 96256] pmid12785928 | | Services: | Forum | Review | PDF | Favorites | |
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