Minimum-error discrimination between three mirror-symmetric states
量子物理
2009-11-07 v1
摘要
We present the optimal measurement strategy for distinguishing between three quantum states exhibiting a mirror symmetry. The three states live in a two-dimensional Hilbert space, and are thus overcomplete. By mirror symmetry we understand that the transformation {|+> -> |+>, |-> -> -|->} leaves the set of states invariant. The obtained measurement strategy minimizes the error probability. An experimental realization for polarized photons, realizable with current technology, is suggested.
引用
@article{arxiv.quant-ph/0201074,
title = {Minimum-error discrimination between three mirror-symmetric states},
author = {Erika Andersson and Stephen M. Barnett and Claire R. Gilson and Kieran Hunter},
journal= {arXiv preprint arXiv:quant-ph/0201074},
year = {2009}
}
备注
4 pages, 2 figures