Distinguishability of complete and unextendible product bases
نویسنده
چکیده
It is not always possible to distinguish multipartite orthogonal states if only local operation and classical communication (LOCC) are allowed. We prove that we cannot distinguish the states of an unextendible product bases (UPB) by LOCC even when infinite resources (infinite-dimensional ancillas, infinite number of operations). Moreover we give a method to check the LOCC distinguishability of a complete product bases. 72.25.-b, 72.10.-d, 72.25.Dc Typeset using REVTEX
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