Quantum-state discrimination

L. Roa, J.C. Retamal and C. Saavedra
PHYSICAL REVIEW A 66 (2002)

ABSTRACT

A proposal for a physical implementation of a quantum-state discrimination protocol using an ion in a linear trap is studied, where two nonorthogonal quantum states are codified using two electronic states of the ion. In addition, a protocol is given for discriminating superpositions of nonorthogonal entangled states between ions inside widely separated optical cavities. The discrimination protocol is extended to the case of N linearly independent nonorthogonal quantum states lying in a space of 2N-1 dimensions.

DOI: http://dx.doi.org/



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