Tuesday, February 14, 2012

1202.2413 (Ananya Ghatak et al.)

Entangled Quantum State Discrimination using Pseudo-Hermitian System    [PDF]

Ananya Ghatak, Bhabani Prasad Mandal
We demonstrate how to discriminate two non-orthogonal, entangled quantum
state which are slightly different from each other by using pseudo-Hermitian
system. The positive definite metric operator which makes the pseudo-Hermitian
systems fully consistent quantum theory is used for such a state
discrimination. We further show that non-orthogonal states can evolve through a
suitably constructed pseudo-Hermitian Hamiltonian to orthogonal states. Such
evolution ceases at exceptional points of the pseudo-Hermitian system.
View original: http://arxiv.org/abs/1202.2413

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