| Issue |
Europhys. Lett.
Volume 40, Number 4, November II 1997
|
|
|---|---|---|
| Page(s) | 357 - 362 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i1997-00471-9 | |
| Published online | 01 September 2002 | |
On the approach to equilibrium of a Hamiltonian chain of anharmonic oscillators
Dipartimento di Fisica, Università La Sapienza,
INFN Sezione di Roma I, Piazzale Aldo Moro 2, 00185 Roma, Italy
Received:
7
August
1997
Accepted:
26
September
1997
In this note we study the approach to equilibrium of a chain of
anharmonic oscillators. We
find indications that a sufficiently large system always relaxes to the
usual equilibrium
distribution. There is no sign of an ergodicity threshold. The time
to arrive to
equilibrium diverges when 
, g being the anharmonicity.
PACS: 05.20.Dd – Kinetic theory / 05.70.Ln – Nonequilibrium thermodynamics, irreversible processes / 63.20.Ry – Anharmonic lattice modes
© EDP Sciences, 1997
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