Suppressing measurement uncertainty in an inhomogeneous spin star system

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 quant...

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Autores principales: Haddadi, Saeed, Ghominejad, Mehrdad, Akhound, Ahmad, Pourkarimi, Mohammad Reza
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8609018/
https://www.ncbi.nlm.nih.gov/pubmed/34811446
http://dx.doi.org/10.1038/s41598-021-02045-0
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author Haddadi, Saeed
Ghominejad, Mehrdad
Akhound, Ahmad
Pourkarimi, Mohammad Reza
author_facet Haddadi, Saeed
Ghominejad, Mehrdad
Akhound, Ahmad
Pourkarimi, Mohammad Reza
author_sort Haddadi, Saeed
collection PubMed
description 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.
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spelling pubmed-86090182021-11-24 Suppressing measurement uncertainty in an inhomogeneous spin star system Haddadi, Saeed Ghominejad, Mehrdad Akhound, Ahmad Pourkarimi, Mohammad Reza Sci Rep Article 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. Nature Publishing Group UK 2021-11-22 /pmc/articles/PMC8609018/ /pubmed/34811446 http://dx.doi.org/10.1038/s41598-021-02045-0 Text en © The Author(s) 2021 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
Haddadi, Saeed
Ghominejad, Mehrdad
Akhound, Ahmad
Pourkarimi, Mohammad Reza
Suppressing measurement uncertainty in an inhomogeneous spin star system
title 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_short Suppressing measurement uncertainty in an inhomogeneous spin star system
title_sort suppressing measurement uncertainty in an inhomogeneous spin star system
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8609018/
https://www.ncbi.nlm.nih.gov/pubmed/34811446
http://dx.doi.org/10.1038/s41598-021-02045-0
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