Suppressing measurement uncertainty in an inhomogeneous spin star system

Abstract The uncertainty principle is known as a foundational element of quantum theory, providing a striking lower bound to quantify our prediction for the measured result of two incompatible observables. In this work, we study the thermal evolution of the entropic uncertainty bound in the presence...

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Autores principales:	Saeed Haddadi, Mehrdad Ghominejad, Ahmad Akhound, Mohammad Reza Pourkarimi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5c05eb1ebcc84df798c894ede4a334db
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spelling	oai:doaj.org-article:5c05eb1ebcc84df798c894ede4a334db2021-11-28T12:19:44ZSuppressing measurement uncertainty in an inhomogeneous spin star system10.1038/s41598-021-02045-02045-2322https://doaj.org/article/5c05eb1ebcc84df798c894ede4a334db2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02045-0https://doaj.org/toc/2045-2322Abstract The uncertainty principle is known as a foundational element of quantum theory, providing a striking lower bound to quantify our prediction for the measured result of two incompatible observables. In this work, we study the thermal evolution of the entropic uncertainty bound in the presence of quantum memory for an inhomogeneous four-qubit spin-star system that is in the thermal regime. Intriguingly, our results show that the entropic uncertainty bound can be controlled and suppressed by adjusting the inhomogeneity parameter of the system.Saeed HaddadiMehrdad GhominejadAhmad AkhoundMohammad Reza PourkarimiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Saeed Haddadi Mehrdad Ghominejad Ahmad Akhound Mohammad Reza Pourkarimi Suppressing measurement uncertainty in an inhomogeneous spin star system
description	Abstract The uncertainty principle is known as a foundational element of quantum theory, providing a striking lower bound to quantify our prediction for the measured result of two incompatible observables. In this work, we study the thermal evolution of the entropic uncertainty bound in the presence of quantum memory for an inhomogeneous four-qubit spin-star system that is in the thermal regime. Intriguingly, our results show that the entropic uncertainty bound can be controlled and suppressed by adjusting the inhomogeneity parameter of the system.
format	article
author	Saeed Haddadi Mehrdad Ghominejad Ahmad Akhound Mohammad Reza Pourkarimi
author_facet	Saeed Haddadi Mehrdad Ghominejad Ahmad Akhound Mohammad Reza Pourkarimi
author_sort	Saeed Haddadi
title	Suppressing measurement uncertainty in an inhomogeneous spin star system
title_short	Suppressing measurement uncertainty in an inhomogeneous spin star system
title_full	Suppressing measurement uncertainty in an inhomogeneous spin star system
title_fullStr	Suppressing measurement uncertainty in an inhomogeneous spin star system
title_full_unstemmed	Suppressing measurement uncertainty in an inhomogeneous spin star system
title_sort	suppressing measurement uncertainty in an inhomogeneous spin star system
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/5c05eb1ebcc84df798c894ede4a334db
work_keys_str_mv	AT saeedhaddadi suppressingmeasurementuncertaintyinaninhomogeneousspinstarsystem AT mehrdadghominejad suppressingmeasurementuncertaintyinaninhomogeneousspinstarsystem AT ahmadakhound suppressingmeasurementuncertaintyinaninhomogeneousspinstarsystem AT mohammadrezapourkarimi suppressingmeasurementuncertaintyinaninhomogeneousspinstarsystem
_version_	1718408016337829888

Suppressing measurement uncertainty in an inhomogeneous spin star system

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