Bulk properties of anharmonic chains in strong thermal gradients: Non-equilibrium φ4 theory

Kenichiro Aoki, Dimitri Kusnezov

Research output: Contribution to journalArticle

95 Citations (Scopus)


We study nonequilibrium properties of a one-dimensional lattice Hamiltonian with quartic interactions in strong thermal gradients. Nonequilibrium temperature profiles, T(x), are found to develop significant curvature and boundary jumps. From the determination of the bulk thermal conductivity, we develop a quantitative description of T(x) including the jumps. (C) 2000 Published by Elsevier Science B.V.

Original languageEnglish
Pages (from-to)250-256
Number of pages7
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number4
Publication statusPublished - 2000 Jan 31



  • Anharmonic chains
  • Fourier's law
  • Green-Kubo
  • Long-time tails
  • Non-equilibrium steady state
  • Thermal conductivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this