A general approach to physical realization of unambiguous quantum-state discrimination

Details A general approach to physical realization of unambiguous quantum-state discrimination A general approach to physical realization of unambiguous quantum-state discrimination

2006-03-07

arxiv.org/abs/quant-ph/0603058v2

Phys. Lett. A, Vol . 356, p255 (2006)

Physics

Quantum Physics

9 pages, Latex file

Scientific paper

10.1016/j.physleta.2006.03.076

We present a general scheme to realize the POVMs for the unambiguous discrimination of quantum states. For any set of pure states it enables us to set up a feasible linear optical circuit to perform their optimal discrimination, if they are prepared as single-photon states. An example of unknown states discrimination is discussed as the illustration of the general scheme.

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