On characterizations of bistochastic Kadison-Schwarz operators on $M_2(\mathbb{C})$
Functional Analysis
2016-01-06 v1 Mathematical Physics
math.MP
Quantum Physics
Abstract
In this paper we describe bistochastic Kadison-Schawrz operators acting on . Such a description allows us to find positive, but not Kadison-Schwarz operators. Moreover, by means of that characterization we construct Kadison-Schawrz operators, which are not completely positive.
Keywords
Cite
@article{arxiv.1601.00719,
title = {On characterizations of bistochastic Kadison-Schwarz operators on $M_2(\mathbb{C})$},
author = {Farrukh Mukhamedov and Hasan Akin},
journal= {arXiv preprint arXiv:1601.00719},
year = {2016}
}
Comments
16 pages, 2 figures. arXiv admin note: text overlap with arXiv:1005.5532