Coupled Brownian Motors: anomalous-to-normal hysteresis transition and noise induced limit cycle
We study a model consisting of N nonlinear oscillators with global periodic coupling and local multiplicative and additive noises. The model was shown to undergo a nonequilibrium phase transition towards a broken-symmetry phase exhibiting noise-induced “ratchet” behavior. Here we review some aspects...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2003 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/47884 |
| Acceso en línea: | http://hdl.handle.net/10261/47884 |
| Access Level: | acceso abierto |
| Palabra clave: | Noise induced phenomena Brownian motors |
| Sumario: | We study a model consisting of N nonlinear oscillators with global periodic coupling and local multiplicative and additive noises. The model was shown to undergo a nonequilibrium phase transition towards a broken-symmetry phase exhibiting noise-induced “ratchet” behavior. Here we review some aspects leading to an ”anomalous–to– normal” transition in the ratchet’s hysteretic behavior and also show –as suggested by the absence of stable solutions when the load force is beyond a critical value–the existence of a limit cycle induced by both: multiplicative noise and global periodic coupling |
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