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
收藏
页码：2156 / 2160
页数：5
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