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Bounds on Mixed State Entanglement

In the general framework of [Formula: see text] mixed states, we derive an explicit bound for bipartite negative partial transpose (NPT) entanglement based on the mixedness characterization of the physical system. The derived result is very general, being based only on the assumption of finite dimen...

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Autores principales: Leggio, Bruno, Napoli, Anna, Nakazato, Hiromichi, Messina, Antonino
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7516494/
https://www.ncbi.nlm.nih.gov/pubmed/33285837
http://dx.doi.org/10.3390/e22010062
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author Leggio, Bruno
Napoli, Anna
Nakazato, Hiromichi
Messina, Antonino
author_facet Leggio, Bruno
Napoli, Anna
Nakazato, Hiromichi
Messina, Antonino
author_sort Leggio, Bruno
collection PubMed
description In the general framework of [Formula: see text] mixed states, we derive an explicit bound for bipartite negative partial transpose (NPT) entanglement based on the mixedness characterization of the physical system. The derived result is very general, being based only on the assumption of finite dimensionality. In addition, it turns out to be of experimental interest since some purity-measuring protocols are known. Exploiting the bound in the particular case of thermal entanglement, a way to connect thermodynamic features to the monogamy of quantum correlations is suggested, and some recent results on the subject are given a physically clear explanation.
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spelling pubmed-75164942020-11-09 Bounds on Mixed State Entanglement Leggio, Bruno Napoli, Anna Nakazato, Hiromichi Messina, Antonino Entropy (Basel) Article In the general framework of [Formula: see text] mixed states, we derive an explicit bound for bipartite negative partial transpose (NPT) entanglement based on the mixedness characterization of the physical system. The derived result is very general, being based only on the assumption of finite dimensionality. In addition, it turns out to be of experimental interest since some purity-measuring protocols are known. Exploiting the bound in the particular case of thermal entanglement, a way to connect thermodynamic features to the monogamy of quantum correlations is suggested, and some recent results on the subject are given a physically clear explanation. MDPI 2020-01-01 /pmc/articles/PMC7516494/ /pubmed/33285837 http://dx.doi.org/10.3390/e22010062 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Leggio, Bruno
Napoli, Anna
Nakazato, Hiromichi
Messina, Antonino
Bounds on Mixed State Entanglement
title Bounds on Mixed State Entanglement
title_full Bounds on Mixed State Entanglement
title_fullStr Bounds on Mixed State Entanglement
title_full_unstemmed Bounds on Mixed State Entanglement
title_short Bounds on Mixed State Entanglement
title_sort bounds on mixed state entanglement
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7516494/
https://www.ncbi.nlm.nih.gov/pubmed/33285837
http://dx.doi.org/10.3390/e22010062
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