Concurrence for infinite-dimensional quantum systems

被引：23
|
作者：
Guo, Yu [1 ,3 ]
Hou, Jinchuan [2 ]
Wang, Yuncai [3 ]
机构：
[1] Shanxi Datong Univ, Dept Math, Datong 037009, Peoples R China
[2] Taiyuan Univ Technol, Dept Math, Taiyuan 030024, Peoples R China
[3] Taiyuan Univ Technol, Inst Optoelect Engn, Dept Phys & Optoelect, Taiyuan 030024, Peoples R China
来源：
QUANTUM INFORMATION PROCESSING | 2013年 / 12卷 / 08期
基金：
中国博士后科学基金;
关键词：
Concurrence; Entanglement measure; Infinite-dimensional quantum systems; PURE STATES; ENTANGLEMENT; PURIFICATION;
D O I：
10.1007/s11128-013-0552-6
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Concurrence is an important entanglement measure for states in finite-dimensional quantum systems that was explored intensively in the last decade. In this paper, we extend the concept of concurrence to infinite-dimensional bipartite systems and show that it is continuous and does not increase under local operation and classical communication.
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页码：2641 / 2653
页数：13
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