Three-colour entanglement generated by an injection-seeded nondegenerate optical parametric oscillator

被引：10

作者：

Yu, Y. B. ^{[1
,2
]}

Xiao, M. ^{[2
,3
,4
]}

Zhu, S. N. ^{[3
,4
]}

机构：

[1] Ningbo Univ Technol, Sch Sci, Ningbo 315211, Zhejiang, Peoples R China

[2] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA

[3] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

[4] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China

来源：

PHYSICS LETTERS A | 2011年 / 375卷 / 24期

基金：

美国国家科学基金会;

关键词：

Quantum entanglement; Quantum information; Nondegenerate optical parametric oscillator; CONTINUOUS VARIABLE ENTANGLEMENT; CONTINUOUS QUANTUM VARIABLES; SUB-2ND HARMONIC-GENERATION; NONEQUILIBRIUM TRANSITIONS; SEPARABILITY CRITERION; ERROR-CORRECTION; PHASE; AMPLIFICATION; TELEPORTATION; INTRACAVITY;

D O I：

10.1016/j.physleta.2011.04.047

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Three-colour continuous-variable (CV) entanglement can be directly generated by an injection-seeded nondegenerate optical parametric oscillator (INOPO). The quantum correlations among the pump, signal, and idler beams are calculated and discussed by applying sufficient inseparability criteria for CV entanglement. The results clearly show that strong three-colour CV entanglement can be produced by operating the pump above the oscillation threshold. The INOPO is easier to realize experimentally and more steady in comparison to that without an injected signal since the injected signal can increase the nonlinear conversion efficiency and the stability, as well as allow a large degree of tunability. This scheme can be very useful for the applications in quantum communication and computation networks. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：2278 / 2282

页数：5