Programmable discriminator of coherent states - experimental realization

Details Programmable discriminator of coherent states - experimental realization Programmable discriminator of coherent states - experimental realization

2007-11-29

arxiv.org/abs/0711.4712v2

Phys. Rev. A 77, 034306 (2008)

Physics

Quantum Physics

4 pages, 6 figures

Scientific paper

10.1103/PhysRevA.77.034306

The optical implementation of the recently proposed unambiguous identification of coherent states is presented. Our system works as a programmable discriminator between two, in general non-orthogonal weak coherent states. The principle of operation lies in the interference of three light beams - two program states and one unknown coherent state which can be equal to whichever of the two program states. The experiment is based on fiber optics. Its results confirm theoretical predictions and the experimental setup can be straightforwardly extended for higher numbers of program states.

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