Equilibrium and dynamical behavior in the Vicsek model for self-propelled particles under shear

Autores
Saracco, Gustavo Pablo; Gonnella, Giuseppe; Marenduzzo, Davide; Orlandini, Enzo
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effects of an externally imposed linear shear profile in the Vicsek model of self-propelled particles is investigated via computer simulations. We find that the applied field changes in a relevant way both the equilibrium and dynamical properties of the original model. Indeed, short time dynamics analysis shows that the order-disordered phase transition disappears under shear, because the flow acts as a symmetry breaking field. Moreover, the coarsening of particle domains is arrested at a characteristic length-scale inversely proportional to shear rate. A generalization of the original Vicsek model where the velocity of particles depends on the local value of the density is also introduced and shows to affect the domain formation.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Física
active matter
non-equilibrium physics
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/114723
Acceder
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network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Equilibrium and dynamical behavior in the Vicsek model for self-propelled particles under shearSaracco, Gustavo PabloGonnella, GiuseppeMarenduzzo, DavideOrlandini, EnzoFísicaactive matternon-equilibrium physicsThe effects of an externally imposed linear shear profile in the Vicsek model of self-propelled particles is investigated via computer simulations. We find that the applied field changes in a relevant way both the equilibrium and dynamical properties of the original model. Indeed, short time dynamics analysis shows that the order-disordered phase transition disappears under shear, because the flow acts as a symmetry breaking field. Moreover, the coarsening of particle domains is arrested at a characteristic length-scale inversely proportional to shear rate. A generalization of the original Vicsek model where the velocity of particles depends on the local value of the density is also introduced and shows to affect the domain formation.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1109-1115http://sedici.unlp.edu.ar/handle/10915/114723enginfo:eu-repo/semantics/altIdentifier/issn/1644-3608info:eu-repo/semantics/altIdentifier/doi/10.2478/s11534-012-0111-2info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:07:41Zoai:sedici.unlp.edu.ar:10915/114723Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:07:41.832SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Equilibrium and dynamical behavior in the Vicsek model for self-propelled particles under shear
title Equilibrium and dynamical behavior in the Vicsek model for self-propelled particles under shear
spellingShingle Equilibrium and dynamical behavior in the Vicsek model for self-propelled particles under shear
Saracco, Gustavo Pablo
Física
active matter
non-equilibrium physics
title_short Equilibrium and dynamical behavior in the Vicsek model for self-propelled particles under shear
title_full Equilibrium and dynamical behavior in the Vicsek model for self-propelled particles under shear
title_fullStr Equilibrium and dynamical behavior in the Vicsek model for self-propelled particles under shear
title_full_unstemmed Equilibrium and dynamical behavior in the Vicsek model for self-propelled particles under shear
title_sort Equilibrium and dynamical behavior in the Vicsek model for self-propelled particles under shear
dc.creator.none.fl_str_mv Saracco, Gustavo Pablo
Gonnella, Giuseppe
Marenduzzo, Davide
Orlandini, Enzo
author Saracco, Gustavo Pablo
author_facet Saracco, Gustavo Pablo
Gonnella, Giuseppe
Marenduzzo, Davide
Orlandini, Enzo
author_role author
author2 Gonnella, Giuseppe
Marenduzzo, Davide
Orlandini, Enzo
author2_role author
author
author
dc.subject.none.fl_str_mv Física
active matter
non-equilibrium physics
topic Física
active matter
non-equilibrium physics
dc.description.none.fl_txt_mv The effects of an externally imposed linear shear profile in the Vicsek model of self-propelled particles is investigated via computer simulations. We find that the applied field changes in a relevant way both the equilibrium and dynamical properties of the original model. Indeed, short time dynamics analysis shows that the order-disordered phase transition disappears under shear, because the flow acts as a symmetry breaking field. Moreover, the coarsening of particle domains is arrested at a characteristic length-scale inversely proportional to shear rate. A generalization of the original Vicsek model where the velocity of particles depends on the local value of the density is also introduced and shows to affect the domain formation.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description The effects of an externally imposed linear shear profile in the Vicsek model of self-propelled particles is investigated via computer simulations. We find that the applied field changes in a relevant way both the equilibrium and dynamical properties of the original model. Indeed, short time dynamics analysis shows that the order-disordered phase transition disappears under shear, because the flow acts as a symmetry breaking field. Moreover, the coarsening of particle domains is arrested at a characteristic length-scale inversely proportional to shear rate. A generalization of the original Vicsek model where the velocity of particles depends on the local value of the density is also introduced and shows to affect the domain formation.
publishDate 2012
dc.date.none.fl_str_mv 2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/114723
url http://sedici.unlp.edu.ar/handle/10915/114723
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1644-3608
info:eu-repo/semantics/altIdentifier/doi/10.2478/s11534-012-0111-2
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
1109-1115
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 12.982451

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