Entanglement witnesses from mutually unbiased measurements

Abstract A new family of positive, trace-preserving maps is introduced. It is defined using the mutually unbiased measurements, which generalize the notion of mutual unbiasedness of orthonormal bases. This family allows one to define entanglement witnesses whose indecomposability depends on the char...

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Autores principales:	Katarzyna Siudzińska, Dariusz Chruściński
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4823787ce3024686ba9856cc494b4bc1
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spelling	oai:doaj.org-article:4823787ce3024686ba9856cc494b4bc12021-11-28T12:17:35ZEntanglement witnesses from mutually unbiased measurements10.1038/s41598-021-02356-22045-2322https://doaj.org/article/4823787ce3024686ba9856cc494b4bc12021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02356-2https://doaj.org/toc/2045-2322Abstract A new family of positive, trace-preserving maps is introduced. It is defined using the mutually unbiased measurements, which generalize the notion of mutual unbiasedness of orthonormal bases. This family allows one to define entanglement witnesses whose indecomposability depends on the characteristics of the associated measurement operators. We provide examples of indecomposable witnesses and compare their entanglement detection properties with the realignment criterion.Katarzyna SiudzińskaDariusz ChruścińskiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Katarzyna Siudzińska Dariusz Chruściński Entanglement witnesses from mutually unbiased measurements
description	Abstract A new family of positive, trace-preserving maps is introduced. It is defined using the mutually unbiased measurements, which generalize the notion of mutual unbiasedness of orthonormal bases. This family allows one to define entanglement witnesses whose indecomposability depends on the characteristics of the associated measurement operators. We provide examples of indecomposable witnesses and compare their entanglement detection properties with the realignment criterion.
format	article
author	Katarzyna Siudzińska Dariusz Chruściński
author_facet	Katarzyna Siudzińska Dariusz Chruściński
author_sort	Katarzyna Siudzińska
title	Entanglement witnesses from mutually unbiased measurements
title_short	Entanglement witnesses from mutually unbiased measurements
title_full	Entanglement witnesses from mutually unbiased measurements
title_fullStr	Entanglement witnesses from mutually unbiased measurements
title_full_unstemmed	Entanglement witnesses from mutually unbiased measurements
title_sort	entanglement witnesses from mutually unbiased measurements
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/4823787ce3024686ba9856cc494b4bc1
work_keys_str_mv	AT katarzynasiudzinska entanglementwitnessesfrommutuallyunbiasedmeasurements AT dariuszchruscinski entanglementwitnessesfrommutuallyunbiasedmeasurements
_version_	1718408073711714304

Entanglement witnesses from mutually unbiased measurements

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