Almost every set of N >= d+1 orthogonal states on d(circle times n) is locally indistinguishable

作者：Cohen Scott M^*

来源：Physical Review A, 2008, 77(6): 060309.

DOI：10.1103/PhysRevA.77.060309

I consider the problem of deterministically distinguishing the state of a multipartite system, from a set of N >= d+1 orthogonal states, where d is the dimension of each party's subsystem. It is shown that if the set of orthogonal states is chosen at random, then there is a vanishing probability that this set will be perfectly distinguishable under the restriction that the parties use only local operations on their subsystems and classical communication among themselves.

• 出版日期2008-6