We present two theorems on calculating the relative entropy of entanglement.Theorem 1 is an extension of Vedral and Plenio's theorem(Phys.Rev.A 57(1998)1619)for pure states,which is useful for calculating the rela...We present two theorems on calculating the relative entropy of entanglement.Theorem 1 is an extension of Vedral and Plenio's theorem(Phys.Rev.A 57(1998)1619)for pure states,which is useful for calculating the relative entropy of entanglement for all pure states as well as for a class of mixed states.Theorem 2 gives the relative entropy of entanglement for any bipartite state whose tripartite purification has two separable reduced bipartite states.展开更多
基金Supported by National Natural Science Foundation of China under Grant No.19975043.
文摘We present two theorems on calculating the relative entropy of entanglement.Theorem 1 is an extension of Vedral and Plenio's theorem(Phys.Rev.A 57(1998)1619)for pure states,which is useful for calculating the relative entropy of entanglement for all pure states as well as for a class of mixed states.Theorem 2 gives the relative entropy of entanglement for any bipartite state whose tripartite purification has two separable reduced bipartite states.
