Self-propelled particles with fluctuating speed and direction of motion in two dimensions

Autores
Peruani San Román, Fernando Miguel; Morelli, Luis Guillermo
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study general aspects of active motion with fluctuations in the speed and the direction of motion in two dimensions. We consider the case in which fluctuations in the speed are not correlated to fluctuations in the direction of motion, and assume that both processes can be described by independent characteristic time scales. We show the occurrence of a complex transient that can exhibit a series of alternating regimes of motion, for two different angular dynamics which correspond to persistent and directed random walks. We also show additive corrections to the diffusion coefficient. The characteristic time scales are also exposed in the velocity autocorrelation, which is a sum of exponential forms. © 2007 The American Physical Society.
Fil: Peruani San Román, Fernando Miguel. Max Planck Institute For The Physics Of Complex Systems; Alemania
Fil: Morelli, Luis Guillermo. 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
Materia
Random Walk
Self Propelled Particles
Active Matter
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:11336/67516
Acceder
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spelling Self-propelled particles with fluctuating speed and direction of motion in two dimensionsPeruani San Román, Fernando MiguelMorelli, Luis GuillermoRandom WalkSelf Propelled ParticlesActive Matterhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1We study general aspects of active motion with fluctuations in the speed and the direction of motion in two dimensions. We consider the case in which fluctuations in the speed are not correlated to fluctuations in the direction of motion, and assume that both processes can be described by independent characteristic time scales. We show the occurrence of a complex transient that can exhibit a series of alternating regimes of motion, for two different angular dynamics which correspond to persistent and directed random walks. We also show additive corrections to the diffusion coefficient. The characteristic time scales are also exposed in the velocity autocorrelation, which is a sum of exponential forms. © 2007 The American Physical Society.Fil: Peruani San Román, Fernando Miguel. Max Planck Institute For The Physics Of Complex Systems; AlemaniaFil: Morelli, Luis Guillermo. 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; ArgentinaAmerican Physical Society2007-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/67516Peruani San Román, Fernando Miguel; Morelli, Luis Guillermo; Self-propelled particles with fluctuating speed and direction of motion in two dimensions; American Physical Society; Physical Review Letters; 99; 1; 12-2007; 106021-1060240031-9007CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.99.010602info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:39:56Zoai:ri.conicet.gov.ar:11336/67516instacron: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 15:39:56.538CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Self-propelled particles with fluctuating speed and direction of motion in two dimensions
title Self-propelled particles with fluctuating speed and direction of motion in two dimensions
spellingShingle Self-propelled particles with fluctuating speed and direction of motion in two dimensions
Peruani San Román, Fernando Miguel
Random Walk
Self Propelled Particles
Active Matter
title_short Self-propelled particles with fluctuating speed and direction of motion in two dimensions
title_full Self-propelled particles with fluctuating speed and direction of motion in two dimensions
title_fullStr Self-propelled particles with fluctuating speed and direction of motion in two dimensions
title_full_unstemmed Self-propelled particles with fluctuating speed and direction of motion in two dimensions
title_sort Self-propelled particles with fluctuating speed and direction of motion in two dimensions
dc.creator.none.fl_str_mv Peruani San Román, Fernando Miguel
Morelli, Luis Guillermo
author Peruani San Román, Fernando Miguel
author_facet Peruani San Román, Fernando Miguel
Morelli, Luis Guillermo
author_role author
author2 Morelli, Luis Guillermo
author2_role author
dc.subject.none.fl_str_mv Random Walk
Self Propelled Particles
Active Matter
topic Random Walk
Self Propelled Particles
Active Matter
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study general aspects of active motion with fluctuations in the speed and the direction of motion in two dimensions. We consider the case in which fluctuations in the speed are not correlated to fluctuations in the direction of motion, and assume that both processes can be described by independent characteristic time scales. We show the occurrence of a complex transient that can exhibit a series of alternating regimes of motion, for two different angular dynamics which correspond to persistent and directed random walks. We also show additive corrections to the diffusion coefficient. The characteristic time scales are also exposed in the velocity autocorrelation, which is a sum of exponential forms. © 2007 The American Physical Society.
Fil: Peruani San Román, Fernando Miguel. Max Planck Institute For The Physics Of Complex Systems; Alemania
Fil: Morelli, Luis Guillermo. 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
description We study general aspects of active motion with fluctuations in the speed and the direction of motion in two dimensions. We consider the case in which fluctuations in the speed are not correlated to fluctuations in the direction of motion, and assume that both processes can be described by independent characteristic time scales. We show the occurrence of a complex transient that can exhibit a series of alternating regimes of motion, for two different angular dynamics which correspond to persistent and directed random walks. We also show additive corrections to the diffusion coefficient. The characteristic time scales are also exposed in the velocity autocorrelation, which is a sum of exponential forms. © 2007 The American Physical Society.
publishDate 2007
dc.date.none.fl_str_mv 2007-12
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/11336/67516
Peruani San Román, Fernando Miguel; Morelli, Luis Guillermo; Self-propelled particles with fluctuating speed and direction of motion in two dimensions; American Physical Society; Physical Review Letters; 99; 1; 12-2007; 106021-106024
0031-9007
CONICET Digital
CONICET
url http://hdl.handle.net/11336/67516
identifier_str_mv Peruani San Román, Fernando Miguel; Morelli, Luis Guillermo; Self-propelled particles with fluctuating speed and direction of motion in two dimensions; American Physical Society; Physical Review Letters; 99; 1; 12-2007; 106021-106024
0031-9007
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/PhysRevLett.99.010602
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
_version_ 1846083514467876864
score 13.22299

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