摘要
In terms of the relation between the state and its reduced states, we obtain two inequalities which are valid for all separable states in infinite-dimensional bipartite quantum systems. One of them provides an entanglement criterion which is strictly stronger than the computable cross-norm or realignment (CCNR) criterion.
In terms of the relation between the state and its reduced states, we obtain two inequalities which are valid for all separable states in infinite-dimensional bipartite quantum systems. One of them provides an entanglement criterion which is strictly stronger than the computable cross-norm or realignment （CCNR） criterion.
基金
supported by the National Natural Science Foundation of China (11171249, 11271217)
Research Fund for the Doctoral Program of Higher Education of China (20101402110012)
China Postdoctoral Science Foundation (2012M520603)
Research Start-up Fund for Doctors of Shanxi Datong University (2011-B-01)
关键词
纠缠
尺寸
检测
量子系统
还原态
无限维
不等式
状态
quantum state, entanglement, computable cross-norm or realignment criterion, infinite-dimensional quantum systems
