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Entropic stochastic resonance Burada, Poornachandra Sekhar Schmid, Gerhard Reguera, D. (David) Vainstein, Mendeli H. Rubí Capaceti, José Miguel Hänggi, Peter Física estadística Física matemàtica Statistical physics Mathematical physics We present a novel scheme for the appearance of stochastic resonance when the dynamics of a Brownian particle takes place in a confined medium. The presence of uneven boundaries, giving rise to an entropic contribution to the potential, may upon application of a periodic driving force result in an increase of the spectral amplification at an optimum value of the ambient noise level. The entropic stochastic resonance, characteristic of small-scale systems, may constitute a useful mechanism for the manipulation and control of single molecules and nanodevices. 2010-07-05T10:28:34Z 2010-07-05T10:28:34Z 2008 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Reproducció digital del document proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevLett.101.130602 Physical Review Letters, 2008, vol. 101, núm. 13, p. 130602-1-130602-4 http://dx.doi.org/10.1103/PhysRevLett.101.130602 (c) American Physical Society, 2008 info:eu-repo/semantics/openAccess American Physical Society Articles publicats en revistes (Física de la Matèria Condensada)