Measurement does not always aid state discrimination
Quantum Physics
2009-11-07 v1
Abstract
We have investigated the problem of discriminating between nonorthogonal quantum states with least probability of error. We have determined that the best strategy for some sets of states is to make no measurement at all, and simply to always assign the most commonly occurring state. Conditions which describe such sets of states have been derived.
Cite
@article{arxiv.quant-ph/0211148,
title = {Measurement does not always aid state discrimination},
author = {Kieran Hunter},
journal= {arXiv preprint arXiv:quant-ph/0211148},
year = {2009}
}
Comments
3 pages