A translation invariant bipolaron in the Holstein model and superconductivity

Large-radius translation invariant (TI) bipolarons are considered in a one-dimensional Holstein molecular chain. Criteria of their stability are obtained. The energy of a translation invariant bipolaron is shown to be lower than that of a bipolaron with broken symmetry. The results obtained are appl...

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Detalles Bibliográficos
Autor principal: Lakhno, Victor
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2016
Materias:
Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4977270/
https://www.ncbi.nlm.nih.gov/pubmed/27547652
http://dx.doi.org/10.1186/s40064-016-2975-x
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author Lakhno, Victor
author_facet Lakhno, Victor
author_sort Lakhno, Victor
collection PubMed
description Large-radius translation invariant (TI) bipolarons are considered in a one-dimensional Holstein molecular chain. Criteria of their stability are obtained. The energy of a translation invariant bipolaron is shown to be lower than that of a bipolaron with broken symmetry. The results obtained are applied to the problem of superconductivity in 1D-systems. It is shown that TI-bipolaron mechanism of Bose-Einstein condensation can support superconductivity even for infinite chain.
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spelling pubmed-49772702016-08-19 A translation invariant bipolaron in the Holstein model and superconductivity Lakhno, Victor Springerplus Research Large-radius translation invariant (TI) bipolarons are considered in a one-dimensional Holstein molecular chain. Criteria of their stability are obtained. The energy of a translation invariant bipolaron is shown to be lower than that of a bipolaron with broken symmetry. The results obtained are applied to the problem of superconductivity in 1D-systems. It is shown that TI-bipolaron mechanism of Bose-Einstein condensation can support superconductivity even for infinite chain. Springer International Publishing 2016-08-08 /pmc/articles/PMC4977270/ /pubmed/27547652 http://dx.doi.org/10.1186/s40064-016-2975-x Text en © The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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.
spellingShingle Research
Lakhno, Victor
A translation invariant bipolaron in the Holstein model and superconductivity
title A translation invariant bipolaron in the Holstein model and superconductivity
title_full A translation invariant bipolaron in the Holstein model and superconductivity
title_fullStr A translation invariant bipolaron in the Holstein model and superconductivity
title_full_unstemmed A translation invariant bipolaron in the Holstein model and superconductivity
title_short A translation invariant bipolaron in the Holstein model and superconductivity
title_sort translation invariant bipolaron in the holstein model and superconductivity
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4977270/
https://www.ncbi.nlm.nih.gov/pubmed/27547652
http://dx.doi.org/10.1186/s40064-016-2975-x
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