Emergence of Collective Motion in a Model of Interacting Brownian Particles.

Dossetti, Victor; Sevilla, Francisco J

Dossetti, Victor; Sevilla, Francisco J.

Afiliação

Dossetti V; CIDS-Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Av. San Claudio esq. 14 Sur, Edif. 103D, Puebla, Pue. 72570, Mexico.
Sevilla FJ; Instituto de Física, Benemérita Universidad Autónoma de Puebla, Apdo. Postal J-48, Puebla, Puebla 72570, Mexico.

Phys Rev Lett ; 115(5): 058301, 2015 Jul 31.

Article em En | MEDLINE | ID: mdl-26274444

RESUMO

By studying a system of Brownian particles that interact among themselves only through a local velocity-alignment force that does not affect their speed, we show that self-propulsion is not a necessary feature for the flocking transition to take place as long as underdamped particle dynamics can be guaranteed. Moreover, the system transits from stationary phases close to thermal equilibrium, with no net flux of particles, to far-from-equilibrium ones exhibiting collective motion, phase coexistence, long-range order, and giant number fluctuations, features typically associated with ordered phases of models where self-propelled particles with overdamped dynamics are considered.

Assuntos

Modelos Teóricos; Movimento (Física); Animais; Comportamento Animal; Difusão; Modelos Biológicos

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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Modelos Teóricos / Movimento (Física) Limite: Animals Idioma: En Revista: Phys Rev Lett Ano de publicação: 2015 Tipo de documento: Article País de afiliação: México País de publicação: Estados Unidos

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