Solving the multi-site and multi-orbital Dynamical Mean Field Theory using Density Matrix Renormalization
- Autores
- Núñez Fernández, Yuriel; Hallberg, Karen Astrid
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We implement an efficient numerical method to calculate response functions of complex impurities based on the Density Matrix Renormalization Group (DMRG) and use it as the impurity-solver of the Dynamical Mean Field Theory (DMFT). This method uses the correction vector to obtain precise Green's functions on the real frequency axis at zero temperature. By using a self-consistent bath configuration with very low entanglement, we take full advantage of the DMRG to calculate dynamical response functions paving the way to treat large effective impurities such as those corresponding to multi-orbital interacting models and multi-site or multi-momenta clusters. This method leads to reliable calculations of non-local self energies at arbitrary dopings and interactions and at any energy scale.
Fil: Núñez Fernández, Yuriel. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Hallberg, Karen Astrid. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina - Materia
-
CORRELATED ELECTRONS
DENSITY MATRIX RENORMALIZATION GROUP
DENSITY OF STATES
DYNAMICAL MEAN FIELD THEORY
MULTI-ORBITAL MODELS - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/98000
Ver los metadatos del registro completo
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Solving the multi-site and multi-orbital Dynamical Mean Field Theory using Density Matrix RenormalizationNúñez Fernández, YurielHallberg, Karen AstridCORRELATED ELECTRONSDENSITY MATRIX RENORMALIZATION GROUPDENSITY OF STATESDYNAMICAL MEAN FIELD THEORYMULTI-ORBITAL MODELShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We implement an efficient numerical method to calculate response functions of complex impurities based on the Density Matrix Renormalization Group (DMRG) and use it as the impurity-solver of the Dynamical Mean Field Theory (DMFT). This method uses the correction vector to obtain precise Green's functions on the real frequency axis at zero temperature. By using a self-consistent bath configuration with very low entanglement, we take full advantage of the DMRG to calculate dynamical response functions paving the way to treat large effective impurities such as those corresponding to multi-orbital interacting models and multi-site or multi-momenta clusters. This method leads to reliable calculations of non-local self energies at arbitrary dopings and interactions and at any energy scale.Fil: Núñez Fernández, Yuriel. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Hallberg, Karen Astrid. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFrontiers Research Foundation2018-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/98000Núñez Fernández, Yuriel; Hallberg, Karen Astrid; Solving the multi-site and multi-orbital Dynamical Mean Field Theory using Density Matrix Renormalization; Frontiers Research Foundation; Frontiers in Physics; 5; FEB; 2-2018; 1-82296-424XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3389/fphy.2018.00013info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fphy.2018.00013/fullinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:38:57Zoai:ri.conicet.gov.ar:11336/98000instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:38:57.326CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Solving the multi-site and multi-orbital Dynamical Mean Field Theory using Density Matrix Renormalization |
title |
Solving the multi-site and multi-orbital Dynamical Mean Field Theory using Density Matrix Renormalization |
spellingShingle |
Solving the multi-site and multi-orbital Dynamical Mean Field Theory using Density Matrix Renormalization Núñez Fernández, Yuriel CORRELATED ELECTRONS DENSITY MATRIX RENORMALIZATION GROUP DENSITY OF STATES DYNAMICAL MEAN FIELD THEORY MULTI-ORBITAL MODELS |
title_short |
Solving the multi-site and multi-orbital Dynamical Mean Field Theory using Density Matrix Renormalization |
title_full |
Solving the multi-site and multi-orbital Dynamical Mean Field Theory using Density Matrix Renormalization |
title_fullStr |
Solving the multi-site and multi-orbital Dynamical Mean Field Theory using Density Matrix Renormalization |
title_full_unstemmed |
Solving the multi-site and multi-orbital Dynamical Mean Field Theory using Density Matrix Renormalization |
title_sort |
Solving the multi-site and multi-orbital Dynamical Mean Field Theory using Density Matrix Renormalization |
dc.creator.none.fl_str_mv |
Núñez Fernández, Yuriel Hallberg, Karen Astrid |
author |
Núñez Fernández, Yuriel |
author_facet |
Núñez Fernández, Yuriel Hallberg, Karen Astrid |
author_role |
author |
author2 |
Hallberg, Karen Astrid |
author2_role |
author |
dc.subject.none.fl_str_mv |
CORRELATED ELECTRONS DENSITY MATRIX RENORMALIZATION GROUP DENSITY OF STATES DYNAMICAL MEAN FIELD THEORY MULTI-ORBITAL MODELS |
topic |
CORRELATED ELECTRONS DENSITY MATRIX RENORMALIZATION GROUP DENSITY OF STATES DYNAMICAL MEAN FIELD THEORY MULTI-ORBITAL MODELS |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
We implement an efficient numerical method to calculate response functions of complex impurities based on the Density Matrix Renormalization Group (DMRG) and use it as the impurity-solver of the Dynamical Mean Field Theory (DMFT). This method uses the correction vector to obtain precise Green's functions on the real frequency axis at zero temperature. By using a self-consistent bath configuration with very low entanglement, we take full advantage of the DMRG to calculate dynamical response functions paving the way to treat large effective impurities such as those corresponding to multi-orbital interacting models and multi-site or multi-momenta clusters. This method leads to reliable calculations of non-local self energies at arbitrary dopings and interactions and at any energy scale. Fil: Núñez Fernández, Yuriel. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Hallberg, Karen Astrid. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina |
description |
We implement an efficient numerical method to calculate response functions of complex impurities based on the Density Matrix Renormalization Group (DMRG) and use it as the impurity-solver of the Dynamical Mean Field Theory (DMFT). This method uses the correction vector to obtain precise Green's functions on the real frequency axis at zero temperature. By using a self-consistent bath configuration with very low entanglement, we take full advantage of the DMRG to calculate dynamical response functions paving the way to treat large effective impurities such as those corresponding to multi-orbital interacting models and multi-site or multi-momenta clusters. This method leads to reliable calculations of non-local self energies at arbitrary dopings and interactions and at any energy scale. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-02 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/98000 Núñez Fernández, Yuriel; Hallberg, Karen Astrid; Solving the multi-site and multi-orbital Dynamical Mean Field Theory using Density Matrix Renormalization; Frontiers Research Foundation; Frontiers in Physics; 5; FEB; 2-2018; 1-8 2296-424X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/98000 |
identifier_str_mv |
Núñez Fernández, Yuriel; Hallberg, Karen Astrid; Solving the multi-site and multi-orbital Dynamical Mean Field Theory using Density Matrix Renormalization; Frontiers Research Foundation; Frontiers in Physics; 5; FEB; 2-2018; 1-8 2296-424X CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.3389/fphy.2018.00013 info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fphy.2018.00013/full |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Frontiers Research Foundation |
publisher.none.fl_str_mv |
Frontiers Research Foundation |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |