Fluctuating hydrodynamics approach to equilibrium time correlations for anharmonic chains

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Abstract

Linear fluctuating hydrodynamics is a useful and versatile tool for describing fluids, as well as other systems with conserved fields, on a mesoscopic scale. In one spatial dimension, however, transport is anomalous, which requires to develop a nonlinear extension of fluctuating hydrodynamics. The relevant nonlinearity turns out to be the quadratic part of the Euler currents when expanding relative to a uniform background. We outline the theory and compare with recent molecular dynamics simulations.

Original languageEnglish
Title of host publication6th Warsaw School of Statistical Physics
PublisherUniversity of Warsaw Press
Pages17-63
Number of pages47
ISBN (Electronic)9788323530091
ISBN (Print)9788323530015
StatePublished - 1 Jan 2017

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