Stochastic thermodynamics for “Maxwell demon” feedbacks
1 Complex Systems and Statistical Mechanics, University of Luxembourg - L-1511 Luxembourg, Luxembourg, EU
2 Institut für Theoretische Physik, Technische Universität Berlin - Hardenbergstrasse 36, D-10623 Berlin, Germany, EU
Received: 25 April 2012
Accepted: 6 July 2012
We propose a way to incorporate the effect of a specific class of feedback processes into stochastic thermodynamics. These “Maxwell demon” feedbacks do not affect the system energetics but only the energy barriers between the system states (in a way which depends on the system states). They are thus of a purely informational nature. We show that the resulting formalism can be applied to study the thermodynamic effect of a feedback process acting on electron transfers through a junction.
PACS: 05.70.Ln – Nonequilibrium and irreversible thermodynamics / 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 05.20.-y – Classical statistical mechanics
© EPLA, 2012