Large deviations and chemical potential in bulk-driven systems in contact

@article{Guioth2018LargeDA,
  title={Large deviations and chemical potential in bulk-driven systems in contact},
  author={Jules Guioth and Eric Bertin},
  journal={Europhysics Letters},
  year={2018},
  volume={123}
}
We study whether the stationary state of two bulk-driven systems slowly exchanging particles can be described by the equality of suitably defined nonequilibrium chemical potentials. Our main result is that in a weak contact limit, chemical potentials can be defined when the dynamics of particle exchange takes a factorized form with respect to the two systems, and satisfies a macroscopic detailed balance property at large deviation level. The chemical potentials of systems in contact generically… 

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