In a granular fluid the balance between energy fluxes entering and leaving the system establishes a non-equilibrium stationary state. Therefore time-reversal symmetry is broken and this affects the statistical features of many observables. A few examples are discussed here, pertaining to the two main paradigms studied in previous chapters: tracer's dynamics and hydrodynamics. In both cases the choice of a reduced number of degrees of freedom appears as a contraction of information. Sometimes this reduction affects non-equilibrium properties.
The Arrow of Time: Past and Future of Grains
Andrea Puglisi
2014
Abstract
In a granular fluid the balance between energy fluxes entering and leaving the system establishes a non-equilibrium stationary state. Therefore time-reversal symmetry is broken and this affects the statistical features of many observables. A few examples are discussed here, pertaining to the two main paradigms studied in previous chapters: tracer's dynamics and hydrodynamics. In both cases the choice of a reduced number of degrees of freedom appears as a contraction of information. Sometimes this reduction affects non-equilibrium properties.File in questo prodotto:
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Descrizione: Chapter_5 The Arrow of Time: Past and Future of Grains
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