无限维两体量子系统态的一些纠缠判据

Some Entanglement Criteria for States in Infinite Dimensional Bipartite Quantum Systems

探讨了无限维两体复合量子系统态的可分性问题,利用局域不确定性关系提出了无限维两体量子态可分的一些必要条件,得到了可分态所满足的一些不等式,推广了作者Otfried Guhne(PhysRev Lett,2004)和Zhang Chengjie(Phys Rev A,2010)的有限维的相关结果,对于识别无限维量子系统态的可分性是一个补充。

The separatability of states in infinite dimensional quantum systems is discussed, some necessary condi- tions for separable states are presented in infinite dimensional quantum systems, some inequalities are obtained for separable states. These results extend the results of Otfried Guhne（Phys Rev Lett,2004） and Zhang ChengJie（Phys Rev A ,2010） ,which reinforces the exploration of entanglement for states in infinite dimensional quantum systems.