Improvement of two-way continuous-variable quantum key distribution   using optical amplifiers

doi:10.1088/0953-4075/47/3/035501

CORC > 北京大学 > 信息科学技术学院

	Improvement of two-way continuous-variable quantum key distribution using optical amplifiers
	Zhang, Yi-Chen ; Li, Zhengyu ; Weedbrook, Christian ; Yu, Song ; Gu, Wanyi ; Sun, Maozhu ; Peng, Xiang ; Guo, Hong
刊名	journal of physics b atomic molecular and optical physics
	2014
关键词	quantum key distribution continuous variable two-way quantum key distribution CRYPTOGRAPHY
DOI	10.1088/0953-4075/47/3/035501
英文摘要	The imperfections of a receiver's detector affect the performance of two-way continuous-variable (CV) quantum key distribution (QKD) protocols and are difficult to adjust in practical situations. We propose a method to improve the performance of two-way CV-QKD by adding a parameter-adjustable optical amplifier at the receiver. A security analysis is derived against a two-mode collective entangling cloner attack. Our simulations show that the proposed method can improve the performance of protocols as long as the inherent noise of the amplifier is lower than a critical value, defined as the tolerable amplifier noise. Furthermore, the optimal performance can approach the scenario where a perfect detector is used.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000330215600014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Optics; Physics, Atomic, Molecular & Chemical; SCI(E); EI; 7; ARTICLE; yusong@bupt.edu.cn; hongguo@pku.edu.cn; 3; 47
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/216216]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhang, Yi-Chen,Li, Zhengyu,Weedbrook, Christian,et al. Improvement of two-way continuous-variable quantum key distribution using optical amplifiers[J]. journal of physics b atomic molecular and optical physics,2014.
APA	Zhang, Yi-Chen.,Li, Zhengyu.,Weedbrook, Christian.,Yu, Song.,Gu, Wanyi.,...&Guo, Hong.(2014).Improvement of two-way continuous-variable quantum key distribution using optical amplifiers.journal of physics b atomic molecular and optical physics.
MLA	Zhang, Yi-Chen,et al."Improvement of two-way continuous-variable quantum key distribution using optical amplifiers".journal of physics b atomic molecular and optical physics (2014).