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Geometric quantum discord of Heisenberg model with dissipative terms

In this paper, we study a system with two interacting qubits described by the Heisenberg model with dissipative terms, and analyze decay dynamics and the steady-state of geometric quantum discords. Our results indicate that we can ignore the interaction force in the z-direction and adjust the parame...

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Detalles Bibliográficos
Autores principales: Liang, Jin, Zhang, Chengwei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7331676/
https://www.ncbi.nlm.nih.gov/pubmed/32616750
http://dx.doi.org/10.1038/s41598-020-67698-9
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author Liang, Jin
Zhang, Chengwei
author_facet Liang, Jin
Zhang, Chengwei
author_sort Liang, Jin
collection PubMed
description In this paper, we study a system with two interacting qubits described by the Heisenberg model with dissipative terms, and analyze decay dynamics and the steady-state of geometric quantum discords. Our results indicate that we can ignore the interaction force in the z-direction and adjust the parameters to change the loss of quantum correlation with time when the initial state satisfies some conditions. Moreover, we show that after a long enough period of time, unlike other parameters, the energy and the intensity of the non-uniform magnetic field do not affect the steady-state.
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spelling pubmed-73316762020-07-06 Geometric quantum discord of Heisenberg model with dissipative terms Liang, Jin Zhang, Chengwei Sci Rep Article In this paper, we study a system with two interacting qubits described by the Heisenberg model with dissipative terms, and analyze decay dynamics and the steady-state of geometric quantum discords. Our results indicate that we can ignore the interaction force in the z-direction and adjust the parameters to change the loss of quantum correlation with time when the initial state satisfies some conditions. Moreover, we show that after a long enough period of time, unlike other parameters, the energy and the intensity of the non-uniform magnetic field do not affect the steady-state. Nature Publishing Group UK 2020-07-02 /pmc/articles/PMC7331676/ /pubmed/32616750 http://dx.doi.org/10.1038/s41598-020-67698-9 Text en © The Author(s) 2020 Open Access This 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Liang, Jin
Zhang, Chengwei
Geometric quantum discord of Heisenberg model with dissipative terms
title Geometric quantum discord of Heisenberg model with dissipative terms
title_full Geometric quantum discord of Heisenberg model with dissipative terms
title_fullStr Geometric quantum discord of Heisenberg model with dissipative terms
title_full_unstemmed Geometric quantum discord of Heisenberg model with dissipative terms
title_short Geometric quantum discord of Heisenberg model with dissipative terms
title_sort geometric quantum discord of heisenberg model with dissipative terms
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7331676/
https://www.ncbi.nlm.nih.gov/pubmed/32616750
http://dx.doi.org/10.1038/s41598-020-67698-9
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