Robert Ziener, Haye Hinrichsen
Published 2015-05-28Version 1
In this paper we discuss the physical origin of entropy production in non-equilibrium systems. To this end we consider a non-equilibrium system as part of a larger isolated system which includes the environment. We show that the well-known Schnakenberg formula for entropy production provides a lower bound to the actual entropy production in the environment. This is demonstrated in the simplest example of a three-state clock model.
Comments: PDFLaTeX, 14 pages, 5 figures
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