Necessary and Sufficient Product Criteria for Quantum States via the Rank of Realignment Matrix of Density Matrix

We present a necessary and sufficient product criterion for bipartite quantum states based on the rank of realignment matrix of density matrix. Then, this approach is generalized to multipartite systems. We first introduce the concept of semiproduct in a similar manner to the semiseparable and prove...

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Veröffentlicht in:	International journal of theoretical physics 2017-11, Vol.56 (11), p.3642-3648
Hauptverfasser:	Qi, Xianfei, Gao, Ting, Yan, Fengli
Format:	Artikel
Sprache:	eng
Schlagworte:	Criteria Elementary Particles Mathematical and Computational Physics Physics Physics and Astronomy Quantum Field Theory Quantum Physics Quantum theory Realignment Theoretical
Online-Zugang:	Volltext
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