Superadditivity of Convex Roof Coherence Measures in Multipartite System

Fuente: arXiv
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Autores principales: Ren, Honglin, Chen, Lin
Formato: Preprint
Publicado: 2025
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author Ren, Honglin
Chen, Lin
author_facet Ren, Honglin
Chen, Lin
contents In this paper, we investigate the convex roof measure of quantum coherence, with a focus on their superadditive properties. We propose sufficient conditions and establish a framework for coherence superadditivity in tripartite and multipartite systems. Through theoretical derivation, the relevant theorems are given. These results not only expand our understanding of the superadditivity of pure and mixed states but also characterize the conditions under which the superadditivity relations reach equality. Finally, the proposed methods and conclusions are verified through representative examples, providing new theoretical insights into the distribution of quantum coherence in multi-part systems.
format Preprint
id arxiv_https___arxiv_org_abs_2505_13095
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Superadditivity of Convex Roof Coherence Measures in Multipartite System
Ren, Honglin
Chen, Lin
Quantum Physics
In this paper, we investigate the convex roof measure of quantum coherence, with a focus on their superadditive properties. We propose sufficient conditions and establish a framework for coherence superadditivity in tripartite and multipartite systems. Through theoretical derivation, the relevant theorems are given. These results not only expand our understanding of the superadditivity of pure and mixed states but also characterize the conditions under which the superadditivity relations reach equality. Finally, the proposed methods and conclusions are verified through representative examples, providing new theoretical insights into the distribution of quantum coherence in multi-part systems.
title Superadditivity of Convex Roof Coherence Measures in Multipartite System
topic Quantum Physics
url https://arxiv.org/abs/2505.13095