Nondestructive N-atom Greenberger-Horne-Zeilinger state analyzer via the cavity input-output process

被引：3

作者：

Zhu, Long ^{[1
]}

Wang, Hong-Fu ^{[1
]}

Su, Shi-Lei ^{[1
]}

Guo, Qi ^{[1
]}

Sun, Li-Li ^{[2
]}

Zhang, Shou ^{[1
]}

机构：

[1] Yanbian Univ, Dept Phys, Coll Sci, Yanji 133002, Jilin, Peoples R China

[2] Harbin Inst Technol, Dept Phys, Ctr Condensed Matter Sci & Technol, Harbin 150001, Heilongjiang, Peoples R China

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2012年 / 29卷 / 08期

基金：

中国国家自然科学基金;

关键词：

BELL-STATE; QUANTUM; ENTANGLEMENT;

D O I：

10.1364/JOSAB.29.002156

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a deterministic scheme to realize N-atom Greenberger-Horne-Zeilinger (GHZ) state analyzer based on the cavity input-output process. In the scheme, we construct a two-qubit parity analyzer and a GHZ-state phase analyzer and show that all the N-atom GHZ states can be completely identified in a nondestructive way by combining these two kinds of analyzers. The fidelities of our analyzers are also calculated, which show that our scheme has a high performance in theory. The scheme opens promising perspectives for achieving efficient large-scale quantum communication and quantum information processing networks. (C) 2012 Optical Society of America

引用

页码：2156 / 2160

页数：5

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