Optimal discrimination of mixed quantum states involving inconclusive results
Quantum Physics
2009-11-07 v1
Abstract
We propose a generalized discrimination scheme for mixed quantum states. In the present scenario we allow for certain fixed fraction of inconclusive results and we maximize the success rate of the quantum-state discrimination. This protocol interpolates between the Ivanovic-Dieks-Peres scheme and the Helstrom one. We formulate the extremal equations for the optimal positive operator valued measure describing the discrimination device and establish a criterion for its optimality. We also devise a numerical method for efficient solving of these extremal equations.
Keywords
Cite
@article{arxiv.quant-ph/0208126,
title = {Optimal discrimination of mixed quantum states involving inconclusive results},
author = {Jaromir Fiurasek and Miroslav Jezek},
journal= {arXiv preprint arXiv:quant-ph/0208126},
year = {2009}
}
Comments
5 pages, 1 figure