Fault-tolerant quantum repeater with atomic ensembles and linear optics

被引：111

作者：

Chen, Zeng-Bing ^{[1
]}

Zhao, Bo

Chen, Yu-Ao

Schmiedmayer, Joerg

Pan, Jian-Wei

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Anhua 230026, Peoples R China

[2] Univ Sci & Technol China, Dept Modern Phys, Anhua 230026, Peoples R China

[3] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

[4] Osterreich Univ, TU Wien, Atominst, A-1020 Vienna, Austria

来源：

PHYSICAL REVIEW A | 2007年 / 76卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.76.022329

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a detailed analysis of a robust quantum repeater architecture building on the original Duan-Lukin-Cirac-Zoller (DLCZ) protocol [L.M. Duan Nature (London) 414, 413 (2001)]. The architecture is based on two-photon Hong-Ou-Mandel-type interference which relaxes the long-distance interferometric stability requirements by about seven orders of magnitude, from subwavelength for the single photon interference required by DLCZ to the coherence length of the photons, thereby removing the weakest point in the DLCZ scheme. Our proposal provides an exciting possibility for robust and realistic long-distance quantum communication.

引用

页数：12

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