Quantum coherence and quantum phase transitions

We study the connections between local quantum coherence (LQC) based on Wigner-Yanase skew information and quantum phase transitions (QPTs). When applied on the one-dimensional Hubbard, XY spin chain with three-spin interaction, and Su-Schrieffer-Heeger models, the LQC and its derivatives are used s...

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Detalles Bibliográficos
Autores principales: Li, Yan-Chao, Lin, Hai-Qing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4872232/
https://www.ncbi.nlm.nih.gov/pubmed/27193057
http://dx.doi.org/10.1038/srep26365
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author Li, Yan-Chao
Lin, Hai-Qing
author_facet Li, Yan-Chao
Lin, Hai-Qing
author_sort Li, Yan-Chao
collection PubMed
description We study the connections between local quantum coherence (LQC) based on Wigner-Yanase skew information and quantum phase transitions (QPTs). When applied on the one-dimensional Hubbard, XY spin chain with three-spin interaction, and Su-Schrieffer-Heeger models, the LQC and its derivatives are used successfully to detect different types of QPTs in these spin and fermionic systems. Furthermore, the LQC is effective as the quantum discord (QD) in detecting QPTs at finite temperatures, where the entanglement has lost its effectiveness. We also demonstrate that the LQC can exhibit different behaviors in many forms compared with the QD.
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spelling pubmed-48722322016-06-02 Quantum coherence and quantum phase transitions Li, Yan-Chao Lin, Hai-Qing Sci Rep Article We study the connections between local quantum coherence (LQC) based on Wigner-Yanase skew information and quantum phase transitions (QPTs). When applied on the one-dimensional Hubbard, XY spin chain with three-spin interaction, and Su-Schrieffer-Heeger models, the LQC and its derivatives are used successfully to detect different types of QPTs in these spin and fermionic systems. Furthermore, the LQC is effective as the quantum discord (QD) in detecting QPTs at finite temperatures, where the entanglement has lost its effectiveness. We also demonstrate that the LQC can exhibit different behaviors in many forms compared with the QD. Nature Publishing Group 2016-05-19 /pmc/articles/PMC4872232/ /pubmed/27193057 http://dx.doi.org/10.1038/srep26365 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Li, Yan-Chao
Lin, Hai-Qing
Quantum coherence and quantum phase transitions
title Quantum coherence and quantum phase transitions
title_full Quantum coherence and quantum phase transitions
title_fullStr Quantum coherence and quantum phase transitions
title_full_unstemmed Quantum coherence and quantum phase transitions
title_short Quantum coherence and quantum phase transitions
title_sort quantum coherence and quantum phase transitions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4872232/
https://www.ncbi.nlm.nih.gov/pubmed/27193057
http://dx.doi.org/10.1038/srep26365
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AT linhaiqing quantumcoherenceandquantumphasetransitions

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