The Fourier heat conduction as a strong kinetic effect

  title={The Fourier heat conduction as a strong kinetic effect},
  author={Hanqing Zhao and Wen-ge Wang},
For an one-dimensional (1D) momentum conserving system, intensive studies have shown that generally its heat current autocorrelation function (HCAF) tends to decay in a power-law manner and results in the breakdown of the Fourier heat conduction law in the thermodynamic limit. This has been recognized to be a dominant hydrodynamic effect. Here we show that, instead, the kinetic effect can be dominant in some cases and leads to the Fourier law. Usually the HCAF undergoes a fast decaying kinetic… 
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