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Title: Entropic transport: kinetics, scaling, and control mechanisms
Author: Reguera, D. (David)
Schmid, Gerhard
Burada, Poornachandra Sekhar
Rubí Capaceti, José Miguel
Reimann, Peter
Hänggi, Peter
Keywords: Física estadística
Statistical physics
Issue Date: 2006
Publisher: American Physical Society
Abstract: We show that transport in the presence of entropic barriers exhibits peculiar characteristics which makes it distinctly different from that occurring through energy barriers. The constrained dynamics yields a scaling regime for the particle current and the diffusion coefficient in terms of the ratio between the work done to the particles and available thermal energy. This interesting property, genuine to the entropic nature of the barriers, can be utilized to effectively control transport through quasi-one-dimensional structures in which irregularities or tortuosity of the boundaries cause entropic effects. The accuracy of the kinetic description has been corroborated by simulations. Applications to different dynamic situations involving entropic barriers are outlined.
Note: Reproducció digital del document proporcionada per PROLA i
It is part of: Physical Review Letters, 2006, vol. 96, núm. 13, p. 130603-1-130603-4
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ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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