Artículo de Publicación Periódica:
Stochastic resonance and brownian ratchets

dc.contributor.authorFendrik, Alejandro J.
dc.contributor.authorRomanelli, Lilia
dc.contributor.authorPerazzo, Roberto P. J.
dc.date.accessioned2018-11-26T17:38:25Z
dc.date.available2018-11-26T17:38:25Z
dc.date.issued2005
dc.description.abstract"We discuss the connections between Brownian ratchets (BR) and stochastic resonance (SR). We consider a periodic potential energy landscape with no left–right symmetry that is driven by an external force which can be derived from a potential that is periodic both in time and space. We show that this system presents two thermal enhancements within two different windows of the temperature. One is associated with a ‘‘coherent diffusion’’ by which particles jump back and forth between the minima of the periodic potential in synchrony with the external driving. The other is instead associated with a ‘‘coherent directional transport’’ by which particles hop synchronically from one minimum of the ratchet to the next. We calculate the current and the diffusion coefficients and show how transport undergoes a resonant enhancement. While the former is always present, the second only appears when left–right symmetry is broken."en
dc.identifier.issn0378-4371
dc.identifier.urihttp://ri.itba.edu.ar/handle/123456789/1333
dc.language.isoenen
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.physa.2005.04.035
dc.relationinfo:eu-repo/grantAgreement/CONICET/PIP/02490/AR. Ciudad Autónoma de Buenos Aires
dc.relationinfo:eu-repo/grantAgreement/UBA/UBACyT/X281/AR. Ciudad Autónoma de Buenos Aires
dc.subjectTERMODINAMICAes
dc.subjectMECANICAes
dc.subjectMOTORESes
dc.subjectFENOMENOS DE TRANSPORTEes
dc.titleStochastic resonance and brownian ratchetsen
dc.typeArtículos de Publicaciones Periódicases
dc.typeinfo:eu-repo/semantics/acceptedversion
dspace.entity.typeArtículo de Publicación Periódica
itba.description.filiationFil: Fendrik, Alejandro J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
itba.description.filiationFil: Romanelli, Lilia. Universidad de General Sarmiento; Argentina.
itba.description.filiationFil: Perazzo, Roberto P. J. Instituto Tecnológico de Buenos Aires; Argentina.

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