Entropic uncertainty relations with quantum memory in a multipartite scenario
Abstract
Entropic uncertainty relations demonstrate the intrinsic uncertainty of nature from an information-theory perspective. Recently, a quantum-memory-assisted entropic uncertainty relation for multiple measurements was proposed by Wu [Phys Rev A. 106. 062219 (2022)]. Interestingly, the quantum-memory-assisted entropic uncertainty relation for multiple measurement settings can be further generalized. In this work, we propose two complementary multipartite quantum-memory-assisted entropic uncertainty relations and our lower bounds depend on values of complementarity of the observables, (conditional) von-Neumann entropies, Holevo quantities, and mutual information. As an illustration, we provide several typical cases to exhibit that our bounds are tighter and outperform the previous bounds.
Cite
@article{arxiv.2307.13202,
title = {Entropic uncertainty relations with quantum memory in a multipartite scenario},
author = {Qing-Hua Zhang and Shao-Ming Fei},
journal= {arXiv preprint arXiv:2307.13202},
year = {2023}
}
Comments
7 pages, 3 figures