Local distinguishability of quantum states in infinite dimensional systems

Details Local distinguishability of quantum states in infinite dimensional systems Local distinguishability of quantum states in infinite dimensional systems

2005-07-04

arxiv.org/abs/quant-ph/0507034v1

Physics

Quantum Physics

Scientific paper

10.1088/0305-4470/39/12/014

We investigate local distinguishability of quantum states by use of the convex analysis about joint numerical range of operators on a Hilbert space. We show that any two orthogonal pure states are distinguishable by local operations and classical communications, even for infinite dimensional systems. An estimate of the local discrimination probability is also given for some family of more than two pure states.

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