Preparation of free-travelling three-mode W-type entangled squeezed vacuum states

被引:3
作者
Wen, Jing-Ji [1 ]
Yeon, Kyu-Hwang [2 ]
Wang, Hong-Fu [3 ]
Zhang, Shou [3 ]
机构
[1] Harbin Univ Commerce, Coll Fdn Sci, Harbin 150028, Heilongjiang, Peoples R China
[2] Chungbuk Natl Univ, Coll Nat Sci, Dept Phys, Cheongju 361763, Chungbuk, South Korea
[3] Yanbian Univ, Coll Sci, Dept Phys, Yanji 133002, Jilin, Peoples R China
基金
中国国家自然科学基金;
关键词
Quantum entanglement; W state; Squeezed vacuum state; Cross-Kerr nonlinearity; COHERENT STATES; QUANTUM TELEPORTATION; GENERATION; PARTICLES;
D O I
10.1016/j.optcom.2015.10.035
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A scheme is proposed to prepare W-type entangled squeezed vacuum states (ESVSs) via free-travelling optical fields with simple linear optical devices, photo detectors and cross-Kerr medium. We investigate the influence of an inexact nonlinear phase factor between two modes on the fidelity of the prepared three-mode W-type ESVSs. By adjusting the appropriate reflectivity, the scheme can be extended to create 2(n+1)-mode W-type ESVSs. (C) 2015 Published by Elsevier B.V.
引用
收藏
页码:13 / 16
页数:4
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