An anomaly in quantum phases induced by borders

The stationary behavior of a quantum system is determined by its Hamiltonian and its boundary conditions. All quantum phase transitions (QPT) reported previously were induced by changing the Hamiltonian. In a circular spin model with Heisenberg XY interactions and no magnetic field, we observe an an...

Descripción completa

Detalles Bibliográficos
Autores principales: Jing, Jun, Guidry, Mike, Wu, Lian-Ao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7181724/
https://www.ncbi.nlm.nih.gov/pubmed/32332877
http://dx.doi.org/10.1038/s41598-020-63555-x
_version_ 1783526103486300160
author Jing, Jun
Guidry, Mike
Wu, Lian-Ao
author_facet Jing, Jun
Guidry, Mike
Wu, Lian-Ao
author_sort Jing, Jun
collection PubMed
description The stationary behavior of a quantum system is determined by its Hamiltonian and its boundary conditions. All quantum phase transitions (QPT) reported previously were induced by changing the Hamiltonian. In a circular spin model with Heisenberg XY interactions and no magnetic field, we observe an anomaly in quantum phases caused by a qualitative change of the boundary condition. The unexpected anomaly features an infinite number of single-particle levels, in the same pattern as the single-photon-triggered quantum phase transition in the Rabi model.
format Online
Article
Text
id pubmed-7181724
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-71817242020-04-27 An anomaly in quantum phases induced by borders Jing, Jun Guidry, Mike Wu, Lian-Ao Sci Rep Article The stationary behavior of a quantum system is determined by its Hamiltonian and its boundary conditions. All quantum phase transitions (QPT) reported previously were induced by changing the Hamiltonian. In a circular spin model with Heisenberg XY interactions and no magnetic field, we observe an anomaly in quantum phases caused by a qualitative change of the boundary condition. The unexpected anomaly features an infinite number of single-particle levels, in the same pattern as the single-photon-triggered quantum phase transition in the Rabi model. Nature Publishing Group UK 2020-04-24 /pmc/articles/PMC7181724/ /pubmed/32332877 http://dx.doi.org/10.1038/s41598-020-63555-x 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
Jing, Jun
Guidry, Mike
Wu, Lian-Ao
An anomaly in quantum phases induced by borders
title An anomaly in quantum phases induced by borders
title_full An anomaly in quantum phases induced by borders
title_fullStr An anomaly in quantum phases induced by borders
title_full_unstemmed An anomaly in quantum phases induced by borders
title_short An anomaly in quantum phases induced by borders
title_sort anomaly in quantum phases induced by borders
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7181724/
https://www.ncbi.nlm.nih.gov/pubmed/32332877
http://dx.doi.org/10.1038/s41598-020-63555-x
work_keys_str_mv AT jingjun ananomalyinquantumphasesinducedbyborders
AT guidrymike ananomalyinquantumphasesinducedbyborders
AT wulianao ananomalyinquantumphasesinducedbyborders
AT jingjun anomalyinquantumphasesinducedbyborders
AT guidrymike anomalyinquantumphasesinducedbyborders
AT wulianao anomalyinquantumphasesinducedbyborders

Ejemplares similares