Density wave propagation in a two-dimensional random dimer potential: From a single to a bipartite square lattice

Autores
Capuzzi, Pablo; Vignolo, P.
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the propagation of a density perturbation in a weakly interacting boson gas confined on a lattice and in the presence of square dimerized impurities. Such a two-dimensional dual random dimer model (2D DRDM), previously introduced [Capuzzi, Gattobigio, and Vignolo, Phys. Rev. A 92, 053622 (2015)PLRAAN1050-294710.1103/PhysRevA.92.053622], is the disorder transition from a single square lattice, where impurities are absent, to a bipartite square lattice, where the number of impurities is maximum and coincides with half the number of lattice sites. We show that disorder correlations can play a crucial role in the dynamics for a broad range of parameters by allowing density fluctuations to propagate in the 2D DRDM lattice, even in the limit of strong disorder. In such a regime, the propagation speed depends on the percentage of impurities, interpolating between the speed in a single monoperiodic lattice and that in a bipartite one.
Fil: Capuzzi, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Vignolo, P.. Université Côte D'azur; Francia
Materia
ANDERSON LOCALIZATION
BOSE-HUBBARD MODEL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/146070
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Density wave propagation in a two-dimensional random dimer potential: From a single to a bipartite square latticeCapuzzi, PabloVignolo, P.ANDERSON LOCALIZATIONBOSE-HUBBARD MODELhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the propagation of a density perturbation in a weakly interacting boson gas confined on a lattice and in the presence of square dimerized impurities. Such a two-dimensional dual random dimer model (2D DRDM), previously introduced [Capuzzi, Gattobigio, and Vignolo, Phys. Rev. A 92, 053622 (2015)PLRAAN1050-294710.1103/PhysRevA.92.053622], is the disorder transition from a single square lattice, where impurities are absent, to a bipartite square lattice, where the number of impurities is maximum and coincides with half the number of lattice sites. We show that disorder correlations can play a crucial role in the dynamics for a broad range of parameters by allowing density fluctuations to propagate in the 2D DRDM lattice, even in the limit of strong disorder. In such a regime, the propagation speed depends on the percentage of impurities, interpolating between the speed in a single monoperiodic lattice and that in a bipartite one.Fil: Capuzzi, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Vignolo, P.. Université Côte D'azur; FranciaAmerican Physical Society2020-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/146070Capuzzi, Pablo; Vignolo, P.; Density wave propagation in a two-dimensional random dimer potential: From a single to a bipartite square lattice; American Physical Society; Physical Review A; 101; 1; 1-2020; 1-82469-9934CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.101.013601info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:48:00Zoai:ri.conicet.gov.ar:11336/146070instacron: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:34982025-10-15 14:48:00.791CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Density wave propagation in a two-dimensional random dimer potential: From a single to a bipartite square lattice
title Density wave propagation in a two-dimensional random dimer potential: From a single to a bipartite square lattice
spellingShingle Density wave propagation in a two-dimensional random dimer potential: From a single to a bipartite square lattice
Capuzzi, Pablo
ANDERSON LOCALIZATION
BOSE-HUBBARD MODEL
title_short Density wave propagation in a two-dimensional random dimer potential: From a single to a bipartite square lattice
title_full Density wave propagation in a two-dimensional random dimer potential: From a single to a bipartite square lattice
title_fullStr Density wave propagation in a two-dimensional random dimer potential: From a single to a bipartite square lattice
title_full_unstemmed Density wave propagation in a two-dimensional random dimer potential: From a single to a bipartite square lattice
title_sort Density wave propagation in a two-dimensional random dimer potential: From a single to a bipartite square lattice
dc.creator.none.fl_str_mv Capuzzi, Pablo
Vignolo, P.
author Capuzzi, Pablo
author_facet Capuzzi, Pablo
Vignolo, P.
author_role author
author2 Vignolo, P.
author2_role author
dc.subject.none.fl_str_mv ANDERSON LOCALIZATION
BOSE-HUBBARD MODEL
topic ANDERSON LOCALIZATION
BOSE-HUBBARD MODEL
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 study the propagation of a density perturbation in a weakly interacting boson gas confined on a lattice and in the presence of square dimerized impurities. Such a two-dimensional dual random dimer model (2D DRDM), previously introduced [Capuzzi, Gattobigio, and Vignolo, Phys. Rev. A 92, 053622 (2015)PLRAAN1050-294710.1103/PhysRevA.92.053622], is the disorder transition from a single square lattice, where impurities are absent, to a bipartite square lattice, where the number of impurities is maximum and coincides with half the number of lattice sites. We show that disorder correlations can play a crucial role in the dynamics for a broad range of parameters by allowing density fluctuations to propagate in the 2D DRDM lattice, even in the limit of strong disorder. In such a regime, the propagation speed depends on the percentage of impurities, interpolating between the speed in a single monoperiodic lattice and that in a bipartite one.
Fil: Capuzzi, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Vignolo, P.. Université Côte D'azur; Francia
description We study the propagation of a density perturbation in a weakly interacting boson gas confined on a lattice and in the presence of square dimerized impurities. Such a two-dimensional dual random dimer model (2D DRDM), previously introduced [Capuzzi, Gattobigio, and Vignolo, Phys. Rev. A 92, 053622 (2015)PLRAAN1050-294710.1103/PhysRevA.92.053622], is the disorder transition from a single square lattice, where impurities are absent, to a bipartite square lattice, where the number of impurities is maximum and coincides with half the number of lattice sites. We show that disorder correlations can play a crucial role in the dynamics for a broad range of parameters by allowing density fluctuations to propagate in the 2D DRDM lattice, even in the limit of strong disorder. In such a regime, the propagation speed depends on the percentage of impurities, interpolating between the speed in a single monoperiodic lattice and that in a bipartite one.
publishDate 2020
dc.date.none.fl_str_mv 2020-01
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/11336/146070
Capuzzi, Pablo; Vignolo, P.; Density wave propagation in a two-dimensional random dimer potential: From a single to a bipartite square lattice; American Physical Society; Physical Review A; 101; 1; 1-2020; 1-8
2469-9934
CONICET Digital
CONICET
url http://hdl.handle.net/11336/146070
identifier_str_mv Capuzzi, Pablo; Vignolo, P.; Density wave propagation in a two-dimensional random dimer potential: From a single to a bipartite square lattice; American Physical Society; Physical Review A; 101; 1; 1-2020; 1-8
2469-9934
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.101.013601
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 American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection 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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score 13.22299

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