Block quantum dynamical semigroups of completely positive definite kernels
Abstract
Kolmogorov decomposition for a given completely positive definite kernel is a generalization of Paschke's GNS construction for the completely positive map. Using Kolmogorov decomposition, to every quantum dynamical semigroup (QDS) for completely positive definite kernels over a set on given -algebra we shall assign an inclusion system of Hilbert bimodules over with a generating unit Consider a von Neumann algebra , and let be a QDS over a set on the algebra with which acts block-wise. Further, suppose that is the inclusion system affiliated to the diagonal QDS along with the generating unit , then we prove that there exists a unique contractive (weak) morphism such that for every and We also study the semigroup version of a factorization theorem for -families.
Cite
@article{arxiv.2401.16846,
title = {Block quantum dynamical semigroups of completely positive definite kernels},
author = {Santanu Dey and Dimple Saini and Harsh Trivedi},
journal= {arXiv preprint arXiv:2401.16846},
year = {2025}
}