artículo de publicación periódica.page.titleprefix Stochastic resonance and brownian ratchets
dc.contributor.author | Fendrik, Alejandro J. | |
dc.contributor.author | Romanelli, Lilia | |
dc.contributor.author | Perazzo, Roberto P. J. | |
dc.date.accessioned | 2018-11-26T17:38:25Z | |
dc.date.available | 2018-11-26T17:38:25Z | |
dc.date.issued | 2005 | |
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.issn | 0378-4371 | |
dc.identifier.uri | http://ri.itba.edu.ar/handle/123456789/1333 | |
dc.language.iso | en | en |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physa.2005.04.035 | |
dc.relation | info:eu-repo/grantAgreement/CONICET/PIP/02490/AR. Ciudad Autónoma de Buenos Aires | |
dc.relation | info:eu-repo/grantAgreement/UBA/UBACyT/X281/AR. Ciudad Autónoma de Buenos Aires | |
dc.subject | TERMODINAMICA | es |
dc.subject | MECANICA | es |
dc.subject | MOTORES | es |
dc.subject | FENOMENOS DE TRANSPORTE | es |
dc.title | Stochastic resonance and brownian ratchets | en |
dc.type | Artículos de Publicaciones Periódicas | es |
dc.type | info:eu-repo/semantics/acceptedversion | |
dspace.entity.type | Artículo de Publicación Periódica | |
itba.description.filiation | Fil: Fendrik, Alejandro J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. | |
itba.description.filiation | Fil: Romanelli, Lilia. Universidad de General Sarmiento; Argentina. | |
itba.description.filiation | Fil: Perazzo, Roberto P. J. Instituto Tecnológico de Buenos Aires; Argentina. |
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