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Locking and unlocking of quantum nonlocality without entanglement in local discrimination of quantum states
The phenomenon of nonlocality without entanglement (NLWE) arises in discriminating multi-party quantum separable states. Recently, it has been found that the post-measurement information about the prepared subensemble can lock or unlock NLWE in minimum-error discrimination of non-orthogonal separabl...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8913735/ https://www.ncbi.nlm.nih.gov/pubmed/35273284 http://dx.doi.org/10.1038/s41598-022-07930-w |
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author | Ha, Donghoon Kim, Jeong San |
author_facet | Ha, Donghoon Kim, Jeong San |
author_sort | Ha, Donghoon |
collection | PubMed |
description | The phenomenon of nonlocality without entanglement (NLWE) arises in discriminating multi-party quantum separable states. Recently, it has been found that the post-measurement information about the prepared subensemble can lock or unlock NLWE in minimum-error discrimination of non-orthogonal separable states. Thus It is natural to ask whether the availability of the post-measurement information can influence on the occurrence of NLWE even in other state-discrimination strategies. Here, we show that the post-measurement information can be used to lock as well as unlock the occurrence of NLWE in terms of optimal unambiguous discrimination. Our results can provide a useful application for hiding or sharing information based on non-orthogonal separable states. |
format | Online Article Text |
id | pubmed-8913735 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-89137352022-03-14 Locking and unlocking of quantum nonlocality without entanglement in local discrimination of quantum states Ha, Donghoon Kim, Jeong San Sci Rep Article The phenomenon of nonlocality without entanglement (NLWE) arises in discriminating multi-party quantum separable states. Recently, it has been found that the post-measurement information about the prepared subensemble can lock or unlock NLWE in minimum-error discrimination of non-orthogonal separable states. Thus It is natural to ask whether the availability of the post-measurement information can influence on the occurrence of NLWE even in other state-discrimination strategies. Here, we show that the post-measurement information can be used to lock as well as unlock the occurrence of NLWE in terms of optimal unambiguous discrimination. Our results can provide a useful application for hiding or sharing information based on non-orthogonal separable states. Nature Publishing Group UK 2022-03-10 /pmc/articles/PMC8913735/ /pubmed/35273284 http://dx.doi.org/10.1038/s41598-022-07930-w Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Ha, Donghoon Kim, Jeong San Locking and unlocking of quantum nonlocality without entanglement in local discrimination of quantum states |
title | Locking and unlocking of quantum nonlocality without entanglement in local discrimination of quantum states |
title_full | Locking and unlocking of quantum nonlocality without entanglement in local discrimination of quantum states |
title_fullStr | Locking and unlocking of quantum nonlocality without entanglement in local discrimination of quantum states |
title_full_unstemmed | Locking and unlocking of quantum nonlocality without entanglement in local discrimination of quantum states |
title_short | Locking and unlocking of quantum nonlocality without entanglement in local discrimination of quantum states |
title_sort | locking and unlocking of quantum nonlocality without entanglement in local discrimination of quantum states |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8913735/ https://www.ncbi.nlm.nih.gov/pubmed/35273284 http://dx.doi.org/10.1038/s41598-022-07930-w |
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