G.L.Sewell
Quantum Macrostatistical Picture of Nonequilibrium Steady States
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ABSTRACT.  We apply our quantum macrostatistical treatment
of irreversible processes [18] to prove that, in nonequilibrium
steady states, (a) the hydrodynamical observables execute a
generalised Onsager-Machlup [12] process and (b) the spatial
correlations of these observables are generically of long range.
The key assumptions behind these results are a nonequilibrium
version of Onsager regression hypothesis [11], together with
certain hypotheses of chaoticity and local equilibrium for
hydrodynamical fluctuations.