Heat Conduction in One-Dimensional chain of Hard Discs with Substrate Potential

Details Heat Conduction in One-Dimensional chain of Hard Discs with Substrate Potential Heat Conduction in One-Dimensional chain of Hard Discs with Substrate Potential

2003-08-29

arxiv.org/abs/cond-mat/0308623v1

Physics

Condensed Matter

14 pages, 7 figures

Scientific paper

10.1103/PhysRevLett.92.074301

Heat conduction of one-dimensional chain of equivalent rigid particles in the field of external on-site potential is considered. Zero diameters of the particles correspond to exactly integrable case with divergent heat conduction coefficient. By means of simple analytical model it is demonstrated that for any nonzero particle size the integrability is violated and the heat conduction coefficient converges. The result of the analytical computation is verified by means of numerical simulation in a plausible diapason of parameters and good agreement is observed

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