Entanglement Purification with Higher Error Threshold for Imperfection of Local Operations and Bell State Measurements

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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