Chin. Phys. Lett.  2005, Vol. 22 Issue (1): 15-17    DOI:
Original Articles |
Entanglement Purification with Higher Error Threshold for Imperfection of Local Operations and Bell State Measurements
SONG Xin-Guo;FENG Xun-Li
Key Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
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SONG Xin-Guo, FENG Xun-Li 2005 Chin. Phys. Lett. 22 15-17
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Abstract We analyse further the entanglement purification protocol proposed by Feng et al. [Phys. Lett. A 271(2000)44] in the case of imperfect local operations and measurements. It is found that this protocol allows of higher error threshold. Compared with the standard entanglement purification proposed by Bennett et al. [Phys. Rev. Lett. 76(1996)722], it turns out that this protocol is remarkably robust against the influences of imperfect local operations and measurements.
Keywords: 03.67.-a      03.67.Pq      42.50.Dv     
Published: 01 January 2005
PACS:  03.67.-a (Quantum information)  
  03.67.Pq  
  42.50.Dv (Quantum state engineering and measurements)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2005/V22/I1/015
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