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dc.contributor.author
Viñales, Angel Daniel
dc.contributor.author
Camuyrano, Mario
dc.contributor.author
Paissan, Gabriel Hernan
dc.date.available
2022-10-25T12:12:19Z
dc.date.issued
2020-05
dc.identifier.citation
Viñales, Angel Daniel; Camuyrano, Mario; Paissan, Gabriel Hernan; Oscillations and negative velocity autocorrelation emerging from a Brownian particle model with hydrodynamic interactions; American Physical Society; Physical Review E: Statistical Physics, Plasmas, Fluids and Related Interdisciplinary Topics; 101; 5; 5-2020; 1-9
dc.identifier.issn
1063-651X
dc.identifier.uri
http://hdl.handle.net/11336/174734
dc.description.abstract
We study the dynamics of a particle in a fluid from a generalized Langevin equation (GLE) with a frictional exponential memory kernel and hydrodynamic interactions. By using Laplace analysis we obtain the analytical expressions for the velocity autocorrelation function (VACF) and mean square displacement (MSD) of the particle. Our results show that, in the strictly asymptotic time limit, the dynamics of the particle correspond to a particle ruled by a GLE with a Dirac delta friction memory kernel and hydrodynamic interactions. However, at intermediate times the dynamical behavior is qualitatively different due to the presence of a characteristic time in the frictional exponential memory kernel. Remarkably, the VACF exhibits oscillations and negative correlation regimes which are reminiscent of features already observed in pioneering works of molecular dynamics simulations. Moreover, ripples in the MSD appear as an emerging behavior associated with the mentioned regimes.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
NOISE
dc.subject
Stochastic analysis methods
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Stochastic processes
dc.subject.classification
Física de los Materiales Condensados
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Oscillations and negative velocity autocorrelation emerging from a Brownian particle model with hydrodynamic interactions
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-19T14:58:08Z
dc.identifier.eissn
2470-0053
dc.journal.volume
101
dc.journal.number
5
dc.journal.pagination
1-9
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Viñales, Angel Daniel. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física; Argentina
dc.description.fil
Fil: Camuyrano, Mario. Comision Nacional de Actividades Espaciales. Conae Sede Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física; Argentina
dc.description.fil
Fil: Paissan, Gabriel Hernan. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
dc.journal.title
Physical Review E: Statistical Physics, Plasmas, Fluids and Related Interdisciplinary Topics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pre/abstract/10.1103/PhysRevE.101.052140
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevE.101.052140
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