Dynamical anomalies and structural features of active Brownian particles characterized by two repulsive length scales

In this work, we study a two-dimensional system composed by Active Brownian Particles (ABPs) interacting via a repulsive potential with two length scales-a soft shell and a hard core. Depending on the ratio between the strength of the soft shell barrier and the activity, we find two regimes: If this...

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Detalhes bibliográficos
Autores: Martín Roca, José, Martínez, Raúl, Martínez Pedrero, Fernando, Ramírez, Jorge, Valeriani, Chantal
Formato: artículo
Fecha de publicación:2022
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/73014
Acesso em linha:https://hdl.handle.net/20.500.14352/73014
Access Level:acceso abierto
Palavra-chave:539.1
Potentials
Pressure
Behavior
Systems
Fluids
Física nuclear
2207 Física Atómica y Nuclear
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oai_identifier_str oai:docta.ucm.es:20.500.14352/73014
network_acronym_str ES
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repository_id_str
spelling Dynamical anomalies and structural features of active Brownian particles characterized by two repulsive length scalesMartín Roca, JoséMartínez, RaúlMartínez Pedrero, FernandoRamírez, JorgeValeriani, Chantal539.1PotentialsPressureBehaviorSystemsFluidsFísica nuclear2207 Física Atómica y NuclearIn this work, we study a two-dimensional system composed by Active Brownian Particles (ABPs) interacting via a repulsive potential with two length scales-a soft shell and a hard core. Depending on the ratio between the strength of the soft shell barrier and the activity, we find two regimes: If this ratio is much larger or smaller than 1, the observed behavior is comparable with ABPs interacting via a single length scale potential. If this ratio is similar to 1, the two length scales are relevant for both structure and dynamical properties. On the structural side, when the system exhibits a motility induced phase separation, the dense phase is characterized by new and more complex structures compared with the hexatic phase observed in single length scale systems. From the dynamic analysis, we find, to our knowledge, the first manifestation of a dynamic heterogeneity in active particles, reminiscent of the glassy dynamics widely studied in passive colloids.American Institute of PhysicsUniversidad Complutense de Madrid20222022-04-2820222022-04-28journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/73014reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/730142026-06-02T12:44:21Z
dc.title.none.fl_str_mv Dynamical anomalies and structural features of active Brownian particles characterized by two repulsive length scales
title Dynamical anomalies and structural features of active Brownian particles characterized by two repulsive length scales
spellingShingle Dynamical anomalies and structural features of active Brownian particles characterized by two repulsive length scales
Martín Roca, José
539.1
Potentials
Pressure
Behavior
Systems
Fluids
Física nuclear
2207 Física Atómica y Nuclear
title_short Dynamical anomalies and structural features of active Brownian particles characterized by two repulsive length scales
title_full Dynamical anomalies and structural features of active Brownian particles characterized by two repulsive length scales
title_fullStr Dynamical anomalies and structural features of active Brownian particles characterized by two repulsive length scales
title_full_unstemmed Dynamical anomalies and structural features of active Brownian particles characterized by two repulsive length scales
title_sort Dynamical anomalies and structural features of active Brownian particles characterized by two repulsive length scales
dc.creator.none.fl_str_mv Martín Roca, José
Martínez, Raúl
Martínez Pedrero, Fernando
Ramírez, Jorge
Valeriani, Chantal
author Martín Roca, José
author_facet Martín Roca, José
Martínez, Raúl
Martínez Pedrero, Fernando
Ramírez, Jorge
Valeriani, Chantal
author_role author
author2 Martínez, Raúl
Martínez Pedrero, Fernando
Ramírez, Jorge
Valeriani, Chantal
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 539.1
Potentials
Pressure
Behavior
Systems
Fluids
Física nuclear
2207 Física Atómica y Nuclear
topic 539.1
Potentials
Pressure
Behavior
Systems
Fluids
Física nuclear
2207 Física Atómica y Nuclear
description In this work, we study a two-dimensional system composed by Active Brownian Particles (ABPs) interacting via a repulsive potential with two length scales-a soft shell and a hard core. Depending on the ratio between the strength of the soft shell barrier and the activity, we find two regimes: If this ratio is much larger or smaller than 1, the observed behavior is comparable with ABPs interacting via a single length scale potential. If this ratio is similar to 1, the two length scales are relevant for both structure and dynamical properties. On the structural side, when the system exhibits a motility induced phase separation, the dense phase is characterized by new and more complex structures compared with the hexatic phase observed in single length scale systems. From the dynamic analysis, we find, to our knowledge, the first manifestation of a dynamic heterogeneity in active particles, reminiscent of the glassy dynamics widely studied in passive colloids.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-04-28
2022
2022-04-28
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/73014
url https://hdl.handle.net/20.500.14352/73014
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 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:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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