Near-deterministic Preparation for Multi-photon GHZ State Based on Quantum Non-demolition Measurement

被引：0
|
作者：
Zheng, Chunhong [1 ,2 ]
Gu, Yongjian [2 ]
Chen, Libo [1 ]
Chen, Bingquan [1 ]
Ma, Hongyang [1 ]
Qiu, Tianhui [1 ]
机构：
[1] Qingdao Technol Univ, Sch Sci, Qingdao 266033, Peoples R China
[2] Ocean Univ China, Dept Phys, Qingdao 266100, Peoples R China
来源：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2015年 / 54卷 / 04期
基金：
中国国家自然科学基金;
关键词：
GHZ state; Weak cross-Kerr nonlinearity; X homodyne measurement; Minus conditional phase shift; ELECTROMAGNETICALLY INDUCED TRANSPARENCY; CROSS-KERR NONLINEARITY; ENTANGLED STATE; LINEAR OPTICS; SCHEME; TELEPORTATION; SPECTROSCOPY; FEEDFORWARD; COMPUTATION; INFORMATION;
D O I：
10.1007/s10773-014-2318-z
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
This study presents an efficient scheme to generate an arbitrary multi-photon polarization-entangled GHZ state with quantum non-demolition measurement based on weak cross-Kerr nonlinearity. The distinct feature of the present scheme is that it works in a near-deterministic way in principle. Compared with the previous protocols, our scheme consumes less weak cross-Kerr nonlinear resources and there is no need for minus conditional phase shifts, which make us more confident in the experimental feasibility of the proposed scheme.
引用
收藏
页码：1216 / 1224
页数：9
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