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

页码：1216 / 1224

页数：9