In dimensions 3 and higher the symmetric simple exclusion process with point-contact reservoirs shows only a weak-coupling regime sensitive to microscopic contact structure, while mesoscopic contacts preserve the macroscopic fluctuation theory with an extended additivity principle.
Universal current fluctuations in the symmetric exclusion process and other diffusive systems
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System driven out-of equilibrium by weak contacts with reservoirs
In dimensions 3 and higher the symmetric simple exclusion process with point-contact reservoirs shows only a weak-coupling regime sensitive to microscopic contact structure, while mesoscopic contacts preserve the macroscopic fluctuation theory with an extended additivity principle.