Sustained currents in coupled diffusive systems
Por:
Larralde, H, Sanders, DP
Publicada:
29 ago 2014
Resumen:
Coupling two diffusive systems may give rise to a nonequilibrium stationary state (NESS) with a non-trivial persistent, circulating current. We study a simple example that is exactly soluble, consisting of random walkers with different biases towards a reflecting boundary, modelling, for example, Brownian particles with different charge states in an electric field. We obtain analytical expressions for the concentrations and currents in the NESS for this model, and exhibit the main features of the system by numerical simulation. © 2014 IOP Publishing Ltd.
Filiaciones:
Larralde, H:
Univ Nacl Autonoma Mexico, Inst Ciencias Fis, Cuernavaca 62551, Morelos, Mexico
Sanders, DP:
Univ Nacl Autonoma Mexico, Fac Ciencies, Dept Fis, Mexico City 04510, DF, Mexico
|