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arXiv · 1601.00719

On characterizations of bistochastic Kadison-Schwarz operators on $M_2(\mathbb{C})$

Farrukh Mukhamedov·Hasan Akin
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Abstract

In this paper we describe bistochastic Kadison-Schawrz operators acting on $M_2(\mathbb{C})$. 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.

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BibTeXRIS

Farrukh Mukhamedov, Hasan Akin. 2016-01-05. On characterizations of bistochastic Kadison-Schwarz operators on $M_2(\mathbb{C})$. https://arxiv.org/abs/1601.00719

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