Title:	Heat conduction in a one-dimensional gas of elastically colliding particles of unequal masses
Authors:	Dhar, Abhishek
Issue Date:	16-Apr-2001
Publisher:	The American Physical Society
Citation:	Physical Review Letters, 2001, Vol.86, 3554
Abstract:	We study the nonequilibrium state of heat conduction in a one-dimensional system of hard point particles of unequal masses interacting through elastic collisions. A BBGKY-type formulation is presented and some exact results are obtained from it. Extensive numerical simulations for the two-mass problem indicate that, even for arbitrarily small mass differences, a nontrivial steady state is obtained. This state exhibits local thermal equilibrium and has a temperature profile as predicted by kinetic theory. The temperature jumps typically seen in such studies are shown to be finite-size effects. The thermal conductivity appears to have a very slow divergence with system size, different from that seen in most other systems.
URI:	http://hdl.handle.net/2289/1172
ISSN:	0031-9007 1079-7114 (online)
Alternative Location:	http://prola.aps.org/abstract/PRL/v86/i16/p3554_1
Copyright:	(2001) by the American Physical Society
Appears in Collections:	Research Papers (TP)

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