What decides the direction of a current

@article{Maes2016WhatDT,
  title={What decides the direction of a current},
  author={Christian Maes},
  journal={arXiv: Statistical Mechanics},
  year={2016}
}
  • C. Maes
  • Published 4 May 2016
  • Biology
  • arXiv: Statistical Mechanics
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. 

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