Experimental Demonstration of Optimal Unambiguous State Discrimination
Quantum Physics
2016-09-08 v1
Abstract
We present the first full demonstration of unambiguous state discrimination between non-orthogonal quantum states. Using a novel free space interferometer we have realised the optimum quantum measurement scheme for two non-orthogonal states of light, known as the Ivanovic-Dieks-Peres (IDP) measurement. We have for the first time gained access to all three possible outcomes of this measurement. All aspects of this generalised measurement scheme, including its superiority over a standard von Neumann measurement, have been demonstrated within 1.5% of the IDP predictions.
Keywords
Cite
@article{arxiv.quant-ph/0007063,
title = {Experimental Demonstration of Optimal Unambiguous State Discrimination},
author = {Roger B. M. Clarke and Anthony Chefles and Stephen M. Barnett and Erling Riis},
journal= {arXiv preprint arXiv:quant-ph/0007063},
year = {2016}
}