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Quantum phase transition induced by real-space topology
A quantum phase transition (QPT), including both topological and symmetry breaking types, is usually induced by the change of global parameters, such as external fields or global coupling constants. In this work, we demonstrate the existence of QPT induced by the real-space topology of the system. W...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5177902/ https://www.ncbi.nlm.nih.gov/pubmed/28004736 http://dx.doi.org/10.1038/srep39416 |
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author | Li, C. Zhang, G. Lin, S. Song, Z. |
author_facet | Li, C. Zhang, G. Lin, S. Song, Z. |
author_sort | Li, C. |
collection | PubMed |
description | A quantum phase transition (QPT), including both topological and symmetry breaking types, is usually induced by the change of global parameters, such as external fields or global coupling constants. In this work, we demonstrate the existence of QPT induced by the real-space topology of the system. We investigate the groundstate properties of the tight-binding model on a honeycomb lattice with the torus geometry based on exact results. It is shown that the ground state experiences a second-order QPT, exhibiting the scaling behavior, when the torus switches to a tube, which reveals the connection between quantum phase and the real-space topology of the system. |
format | Online Article Text |
id | pubmed-5177902 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-51779022016-12-29 Quantum phase transition induced by real-space topology Li, C. Zhang, G. Lin, S. Song, Z. Sci Rep Article A quantum phase transition (QPT), including both topological and symmetry breaking types, is usually induced by the change of global parameters, such as external fields or global coupling constants. In this work, we demonstrate the existence of QPT induced by the real-space topology of the system. We investigate the groundstate properties of the tight-binding model on a honeycomb lattice with the torus geometry based on exact results. It is shown that the ground state experiences a second-order QPT, exhibiting the scaling behavior, when the torus switches to a tube, which reveals the connection between quantum phase and the real-space topology of the system. Nature Publishing Group 2016-12-22 /pmc/articles/PMC5177902/ /pubmed/28004736 http://dx.doi.org/10.1038/srep39416 Text en Copyright © 2016, The Author(s) 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, C. Zhang, G. Lin, S. Song, Z. Quantum phase transition induced by real-space topology |
title | Quantum phase transition induced by real-space topology |
title_full | Quantum phase transition induced by real-space topology |
title_fullStr | Quantum phase transition induced by real-space topology |
title_full_unstemmed | Quantum phase transition induced by real-space topology |
title_short | Quantum phase transition induced by real-space topology |
title_sort | quantum phase transition induced by real-space topology |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5177902/ https://www.ncbi.nlm.nih.gov/pubmed/28004736 http://dx.doi.org/10.1038/srep39416 |
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