Abstract
We numerically study heat conduction in chains of nonlinear oscillators with time-reversible thermostats. A nontrivial temperature profile is found to set in, which obeys a simple scaling relation for increasing the number N of particles. The thermal conductivity diverges approximately as N-1/2, indicating that chaotic behavior is not enough to ensure the Fourier law. Finally, we show that the microscopic dynamics ensures fulfillment of a macroscopic balance equation for the entropy production.
Original language | English |
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Pages (from-to) | 1896-1899 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 78 |
Issue number | 10 |
DOIs | |
Publication status | Published - 10 Mar 1997 |
Keywords
- thermal-conductivity
- dynamical ensembles
- equilibrium
- states