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Sufficient and necessary conditions of separability for bipartite pure states in infinite-dimensional systems |
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| Authors: | Yu Guo XiaoFei Qi JinChuan Hou |
| Institution: | GUO Yu1,2,QI XiaoFei1 & HOU JinChuan1,3* 1 Department of Mathematics,Shanxi University,Taiyuan 030006,China,2 Department of Mathematics,Shanxi Datong University,Datong 037009,3 Department of Mathematics,Taiyuan University of Technology,Taiyuan 030024 |
| Abstract: | The PHC criterion and the realignment criterion for pure states in infinite-dimensional bipartite quantum systems are given. Furthermore, several equivalent conditions for pure states to be separable are generalized to infinite-dimensional systems. |
| Keywords: | quantum state entanglement criterion partial Hermitian conjugate PPT realignment witness |
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