Optimality of minimum-error discrimination by the no-signalling condition
Quantum Physics
2010-09-23 v2
Abstract
In this work we relate the well-known no-go theorem that two non-orthogonal (mixed) quantum states cannot be perfectly discriminated, to the general principle in physics, the no-signalling condition. In fact, we derive the minimum error in discrimination between two quantum states, using the no-signalling condition.
Keywords
Cite
@article{arxiv.0711.0664,
title = {Optimality of minimum-error discrimination by the no-signalling condition},
author = {Joonwoo Bae and Jae-Weon Lee and Jaewan Kim and Won-Young Hwang},
journal= {arXiv preprint arXiv:0711.0664},
year = {2010}
}
Comments
4 pages, 1 figure