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Extracting quantum coherence via steering

As the precious resource for quantum information processing, quantum coherence can be created remotely if the involved two sites are quantum correlated. It can be expected that the amount of coherence created should depend on the quantity of the shared quantum correlation, which is also a resource....

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Detalles Bibliográficos
Autores principales: Hu, Xueyuan, Fan, Heng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5041134/
https://www.ncbi.nlm.nih.gov/pubmed/27682450
http://dx.doi.org/10.1038/srep34380
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author Hu, Xueyuan
Fan, Heng
author_facet Hu, Xueyuan
Fan, Heng
author_sort Hu, Xueyuan
collection PubMed
description As the precious resource for quantum information processing, quantum coherence can be created remotely if the involved two sites are quantum correlated. It can be expected that the amount of coherence created should depend on the quantity of the shared quantum correlation, which is also a resource. Here, we establish an operational connection between coherence induced by steering and the quantum correlation. We find that the steering-induced coherence quantified by such as relative entropy of coherence and trace-norm of coherence is bounded from above by a known quantum correlation measure defined as the one-side measurement-induced disturbance. The condition that the upper bound saturated by the induced coherence varies for different measures of coherence. The tripartite scenario is also studied and similar conclusion can be obtained. Our results provide the operational connections between local and non-local resources in quantum information processing.
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spelling pubmed-50411342016-09-30 Extracting quantum coherence via steering Hu, Xueyuan Fan, Heng Sci Rep Article As the precious resource for quantum information processing, quantum coherence can be created remotely if the involved two sites are quantum correlated. It can be expected that the amount of coherence created should depend on the quantity of the shared quantum correlation, which is also a resource. Here, we establish an operational connection between coherence induced by steering and the quantum correlation. We find that the steering-induced coherence quantified by such as relative entropy of coherence and trace-norm of coherence is bounded from above by a known quantum correlation measure defined as the one-side measurement-induced disturbance. The condition that the upper bound saturated by the induced coherence varies for different measures of coherence. The tripartite scenario is also studied and similar conclusion can be obtained. Our results provide the operational connections between local and non-local resources in quantum information processing. Nature Publishing Group 2016-09-29 /pmc/articles/PMC5041134/ /pubmed/27682450 http://dx.doi.org/10.1038/srep34380 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Hu, Xueyuan
Fan, Heng
Extracting quantum coherence via steering
title Extracting quantum coherence via steering
title_full Extracting quantum coherence via steering
title_fullStr Extracting quantum coherence via steering
title_full_unstemmed Extracting quantum coherence via steering
title_short Extracting quantum coherence via steering
title_sort extracting quantum coherence via steering
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5041134/
https://www.ncbi.nlm.nih.gov/pubmed/27682450
http://dx.doi.org/10.1038/srep34380
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