Asymmetric fluctuation-relaxation paths in FPU models
C.Giberti, L.Rondoni, C.Vernia
TL;DR
This paper demonstrates the presence of temporal asymmetries in fluctuation-relaxation paths of local heat flow in the nonequilibrium FPU model, confirming recent theoretical predictions about nonequilibrium systems.
Contribution
It provides empirical evidence of temporal asymmetry in fluctuation-relaxation paths within the FPU model, supporting the recent theoretical framework.
Findings
Temporal asymmetries observed in local heat flow fluctuations.
Supports the theoretical prediction of asymmetry in nonequilibrium systems.
Validates the fluctuation-relaxation path theory in a specific physical model.
Abstract
A recent theory by Bertini, De Sole, Gabrielli, Jona-Lasinio and Landim predicts a temporal asymmetry in the fluctuation-relaxation paths of certain observables of nonequilibrium systems in local thermodynamic equilibrium. We find temporal asymmetries in the fluctuation-relaxation paths of a form of local heat flow, in the nonequilibrium FPU- model of Lepri, Livi and Politi.
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