Phase separation and emergence of collective motion in a one-dimensional system of active particles
- Autores
- Barberis, Lucas Miguel; Peruani San Román, Fernando Miguel
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We study numerically a one-dimensional system of self-propelled particles, where the state of the particles is given by their moving direction (left or right), which is encoded by a spin-like variable, and their position. Particles interact by short-ranged, spring-like attractive forces and do not possess spin-spin interactions (i.e., velocity alignment). Newton's third law is broken in this model by assuming an asymmetric interaction range that is larger in the direction of the moving direction of the particle. We show that in this nonequilibrium system, due to the absence of the action-reaction symmetry, there exists an intimate link between phase separation and the formation of highly coherent, spatially localized, moving flocks (i.e., collective motion). More specifically, we prove the existence of two fundamentally different types of active phase separation, which we refer to as neutral phase separation (NPS) and polar phase separation. Furthermore, we indicate that NPS is subdivided in two classes with distinct critical exponents. These results are of key importance to understand that in active matter, there exist several phase-separation classes and that the emergence of polar, self-organized patterns (i.e., flocks) does not require the presence of a velocity alignment.
Fil: Barberis, Lucas Miguel. Université Nice Sophia Antipolis; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Peruani San Román, Fernando Miguel. Université Nice Sophia Antipolis; Francia - Materia
-
SELF-PROPELLED PARTICLES
ONE DIMENSIONAL MODELS
BREAKING ACTION-REACTION - 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:11336/125365
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Phase separation and emergence of collective motion in a one-dimensional system of active particlesBarberis, Lucas MiguelPeruani San Román, Fernando MiguelSELF-PROPELLED PARTICLESONE DIMENSIONAL MODELSBREAKING ACTION-REACTIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study numerically a one-dimensional system of self-propelled particles, where the state of the particles is given by their moving direction (left or right), which is encoded by a spin-like variable, and their position. Particles interact by short-ranged, spring-like attractive forces and do not possess spin-spin interactions (i.e., velocity alignment). Newton's third law is broken in this model by assuming an asymmetric interaction range that is larger in the direction of the moving direction of the particle. We show that in this nonequilibrium system, due to the absence of the action-reaction symmetry, there exists an intimate link between phase separation and the formation of highly coherent, spatially localized, moving flocks (i.e., collective motion). More specifically, we prove the existence of two fundamentally different types of active phase separation, which we refer to as neutral phase separation (NPS) and polar phase separation. Furthermore, we indicate that NPS is subdivided in two classes with distinct critical exponents. These results are of key importance to understand that in active matter, there exist several phase-separation classes and that the emergence of polar, self-organized patterns (i.e., flocks) does not require the presence of a velocity alignment.Fil: Barberis, Lucas Miguel. Université Nice Sophia Antipolis; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaFil: Peruani San Román, Fernando Miguel. Université Nice Sophia Antipolis; FranciaAmerican Institute of Physics2019-04-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/125365Barberis, Lucas Miguel; Peruani San Román, Fernando Miguel; Phase separation and emergence of collective motion in a one-dimensional system of active particles; American Institute of Physics; Journal of Chemical Physics; 150; 14; 14-4-2019; 1449050021-9606CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://aip.scitation.org/doi/10.1063/1.5085840info:eu-repo/semantics/altIdentifier/doi/10.1063/1.5085840info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:26:23Zoai:ri.conicet.gov.ar:11336/125365instacron: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 10:26:24.082CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Phase separation and emergence of collective motion in a one-dimensional system of active particles |
title |
Phase separation and emergence of collective motion in a one-dimensional system of active particles |
spellingShingle |
Phase separation and emergence of collective motion in a one-dimensional system of active particles Barberis, Lucas Miguel SELF-PROPELLED PARTICLES ONE DIMENSIONAL MODELS BREAKING ACTION-REACTION |
title_short |
Phase separation and emergence of collective motion in a one-dimensional system of active particles |
title_full |
Phase separation and emergence of collective motion in a one-dimensional system of active particles |
title_fullStr |
Phase separation and emergence of collective motion in a one-dimensional system of active particles |
title_full_unstemmed |
Phase separation and emergence of collective motion in a one-dimensional system of active particles |
title_sort |
Phase separation and emergence of collective motion in a one-dimensional system of active particles |
dc.creator.none.fl_str_mv |
Barberis, Lucas Miguel Peruani San Román, Fernando Miguel |
author |
Barberis, Lucas Miguel |
author_facet |
Barberis, Lucas Miguel Peruani San Román, Fernando Miguel |
author_role |
author |
author2 |
Peruani San Román, Fernando Miguel |
author2_role |
author |
dc.subject.none.fl_str_mv |
SELF-PROPELLED PARTICLES ONE DIMENSIONAL MODELS BREAKING ACTION-REACTION |
topic |
SELF-PROPELLED PARTICLES ONE DIMENSIONAL MODELS BREAKING ACTION-REACTION |
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 numerically a one-dimensional system of self-propelled particles, where the state of the particles is given by their moving direction (left or right), which is encoded by a spin-like variable, and their position. Particles interact by short-ranged, spring-like attractive forces and do not possess spin-spin interactions (i.e., velocity alignment). Newton's third law is broken in this model by assuming an asymmetric interaction range that is larger in the direction of the moving direction of the particle. We show that in this nonequilibrium system, due to the absence of the action-reaction symmetry, there exists an intimate link between phase separation and the formation of highly coherent, spatially localized, moving flocks (i.e., collective motion). More specifically, we prove the existence of two fundamentally different types of active phase separation, which we refer to as neutral phase separation (NPS) and polar phase separation. Furthermore, we indicate that NPS is subdivided in two classes with distinct critical exponents. These results are of key importance to understand that in active matter, there exist several phase-separation classes and that the emergence of polar, self-organized patterns (i.e., flocks) does not require the presence of a velocity alignment. Fil: Barberis, Lucas Miguel. Université Nice Sophia Antipolis; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina Fil: Peruani San Román, Fernando Miguel. Université Nice Sophia Antipolis; Francia |
description |
We study numerically a one-dimensional system of self-propelled particles, where the state of the particles is given by their moving direction (left or right), which is encoded by a spin-like variable, and their position. Particles interact by short-ranged, spring-like attractive forces and do not possess spin-spin interactions (i.e., velocity alignment). Newton's third law is broken in this model by assuming an asymmetric interaction range that is larger in the direction of the moving direction of the particle. We show that in this nonequilibrium system, due to the absence of the action-reaction symmetry, there exists an intimate link between phase separation and the formation of highly coherent, spatially localized, moving flocks (i.e., collective motion). More specifically, we prove the existence of two fundamentally different types of active phase separation, which we refer to as neutral phase separation (NPS) and polar phase separation. Furthermore, we indicate that NPS is subdivided in two classes with distinct critical exponents. These results are of key importance to understand that in active matter, there exist several phase-separation classes and that the emergence of polar, self-organized patterns (i.e., flocks) does not require the presence of a velocity alignment. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-04-14 |
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/11336/125365 Barberis, Lucas Miguel; Peruani San Román, Fernando Miguel; Phase separation and emergence of collective motion in a one-dimensional system of active particles; American Institute of Physics; Journal of Chemical Physics; 150; 14; 14-4-2019; 144905 0021-9606 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/125365 |
identifier_str_mv |
Barberis, Lucas Miguel; Peruani San Román, Fernando Miguel; Phase separation and emergence of collective motion in a one-dimensional system of active particles; American Institute of Physics; Journal of Chemical Physics; 150; 14; 14-4-2019; 144905 0021-9606 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://aip.scitation.org/doi/10.1063/1.5085840 info:eu-repo/semantics/altIdentifier/doi/10.1063/1.5085840 |
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 Institute of Physics |
publisher.none.fl_str_mv |
American Institute of Physics |
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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1844614265434013696 |
score |
13.070432 |