Comment on "Current fluctuations in non-equilibrium diffusive systems: an additivity principle"

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Sukhorukov, Eugene V.; Jordan, Andrew N.;
  • Subject: Condensed Matter - Statistical Mechanics | Condensed Matter - Mesoscale and Nanoscale Physics

We point out that the "additivity principle" and "scaling hypothesis" postulated by Bodineau and Derrida in Phys. Rev. Lett 92, 180601 (2004), follow naturally from the saddle point evaluation of a diffusive field theory.
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