Distributed entanglement in the two-photon two-mode non-linear process

被引：0
作者：
C.-Z. Wang
C.-X. Li
G.-C. Guo
机构：
[1] Key Laboratory of Quantum Information,
[2] University of Science and Technology of China,undefined
来源：
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics | 2006年 / 37卷
关键词：
Spectroscopy; Entropy; Neural Network; State Physics; Complex System;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper we consider a quantum optics model where two-mode quantum light cavity with Kerr-like medium is coupled to an atom via two-photon process. The dynamical evolution of the system is studied in terms of entanglement measured by quantum relative entropy. The entanglements for the different bipartite partitions of the system, i.e., atom-two modes, mode-mode, mode-(atom+mode), are calculated explicitly and interesting trade-off relations between the different kinds of entanglement can be observed in different cases. The results show the entanglement between mode-mode is generally out of phase with that between atom and two modes, even though the two modes do not interact directly, and the Kerr-like medium prevents the atom and two modes from entangling.
引用
收藏
页码：267 / 273
页数：6
相关论文
共 21 条
[1]  
Osterloh undefined(2002)undefined Nature 416 608-undefined
[2]  
Coffiman undefined(2000)undefined Phys. Rev. A 61 052306-undefined
[3]  
Wootters undefined(1997)undefined Phys. Rev. Lett. 80 2245-undefined
[4]  
Koashi undefined(2004)undefined Phys. Rev. A 69 022309-undefined
[5]  
Koashi undefined(2000)undefined Phys. Rev. A 62 050302-undefined
[6]  
Wolf undefined(2004)undefined Phys. Rev. Lett 92 087903-undefined
[7]  
Hutton undefined(2004)undefined Phys. Rev. A 69 042312-undefined
[8]  
Tessier undefined(2003)undefined Phys. Rev. A 68 062316-undefined
[9]  
Hillery undefined(1991)undefined Phys. Rev. A 44 4578-undefined
[10]  
Chaba undefined(1992)undefined Phys. Rev. A 46 1499-undefined
123