On time's arrow in Ehrenfest models with reversible deterministic dynamics

R. Metzler, W. Kinzel, I. Kanter

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We introduce a deterministic, time-reversible version of the Ehrenfest urn model. The distribution of first-passage times from equilibrium to non-equilibrium states and vice versa is calculated. We find that average times for transition to non-equilibrium always scale exponentially with the system size, whereas the timescale for relaxation to equilibrium depends on microscopic dynamics. To illustrate this, we also look at deterministic and stochastic versions of the Ehrenfest model with a distribution of microscopic relaxation times.

Original languageEnglish
Pages (from-to)317-326
Number of pages10
JournalJournal of Physics A: Mathematical and General
Issue number2
StatePublished - 19 Jan 2001


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