Drift in Diffusion Gradients
AbstractThe longstanding problem of Brownian transport in a heterogeneous quasi one-dimensional medium with space-dependent self-diffusion coefficient is addressed in the overdamped (zero mass) limit. A satisfactory mesoscopic description is obtained in the Langevin equation formalism by introducing an appropriate drift term, which depends on the system macroscopic observables, namely the diffuser concentration and current. The drift term is related to the microscopic properties of the medium. The paradoxical existence of a finite drift at zero current suggests the possibility of designing a Maxwell demon operating between two equilibrium reservoirs at the same temperature. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Marchesoni, F. Drift in Diffusion Gradients. Materials 2013, 6, 3598-3609.
Marchesoni F. Drift in Diffusion Gradients. Materials. 2013; 6(8):3598-3609.Chicago/Turabian Style
Marchesoni, Fabio. 2013. "Drift in Diffusion Gradients." Materials 6, no. 8: 3598-3609.