Optimal distinction between non-orthogonal quantum states
Quantum Physics
2009-09-25 v1
Abstract
Given a finite set of linearly independent quantum states, an observer who examines a single quantum system may sometimes identify its state with certainty. However, unless these quantum states are orthogonal, there is a finite probability of failure. A complete solution is given to the problem of optimal distinction of three states, having arbitrary prior probabilities and arbitrary detection values. A generalization to more than three states is outlined.
Cite
@article{arxiv.quant-ph/9804031,
title = {Optimal distinction between non-orthogonal quantum states},
author = {Asher Peres and Daniel Terno},
journal= {arXiv preprint arXiv:quant-ph/9804031},
year = {2009}
}
Comments
9 pages LaTeX, one PostScript figure on separate page