Spatial distributions of observables in systems under thermal gradients

Kenichiro Aoki, Dimitri Kusnezov

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Departures of observables from their thermal equilibrium expectation values are studied under heat flow in steady-state nonequilibrium environments. The relation between the spatial and temperature dependence of these nonequilibrium behaviors and the underlying statistical properties are clarified from general considerations. The predictions are then confirmed in direct numerical simulations within the Fermi-Pasta-Ulam [Formula presented] model. Nonequilibrium momentum distribution functions are also examined and characterized through their cumulants and the properties of higher order cumulants are discussed.

Original languageEnglish
Number of pages1
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume70
Issue number5
DOIs
Publication statusPublished - 2004 Jan 1

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Cumulants
Spatial Distribution
Non-equilibrium
spatial distribution
Gradient
gradients
Nonequilibrium Steady State
Spatial Dependence
Thermal Equilibrium
Heat Flow
Temperature Dependence
direct numerical simulation
heat transmission
Statistical property
Distribution Function
Momentum
distribution functions
Higher Order
momentum
temperature dependence

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

Cite this

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