Some thermal transport properties of the FPU model with quadratic pinning

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Thermal transport properties of the FPU β model with a quadratic pinning term are investigated for various couplings and temperatures. In particular, the size dependence of the thermal conductivity, κ α Lα, is studied. α agrees with that of the FPU β model (with no pinning) at high temperatures but decreases at low temperatures. This crossover behavior occurs at a temperature depending on the strength of the quadratic pinning.

Original languageEnglish
Pages (from-to)717-724
Number of pages8
JournalProgress of Theoretical Physics
Issue number5
Publication statusPublished - 2008 May 1


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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