What decides the direction of a current?
arXiv:1605.01265 · doi:10.2140/memocs.2016.4.275
Abstract
Nonequilibria show currents that are maintained as the result of a steady driving. We ask here what decides their direction. It is not only the second law, or the positivity of the entropy production that decides; also non-dissipative aspects often matter and sometimes completely decide.
Dedicated in honor of Lucio Russo