Vol. 4, No. 3-4, 2016
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What decides the direction of a current?

Christian Maes

Vol. 4 (2016), No. 3-4, 275–295
DOI: 10.2140/memocs.2016.4.275
Abstract

Nonequilibria show currents that are maintained as the result of steady driving. We ask here what decides their direction. It is not only the second law or the positivity of the entropy production; nondissipative aspects also often matter and sometimes completely decide the direction.

Dedicated in honor of Lucio Russo
Keywords
direction current, nonequilibrium statistical mechanics
Mathematical Subject Classification 2010
Primary: 82C03
Milestones
Received: 1 April 2016
Revised: 19 August 2016
Accepted: 26 September 2016
Published: 17 December 2016

Communicated by Raffaele Esposito
Authors
Christian Maes
Instituut voor Theoretische Fysica
Katholieke Universiteit Leuven
Celestijnenlaan 200D
3001 Leuven
Belgium