On the approach to equilibrium of an Hamiltonian chain of anharmonic oscillators

Details On the approach to equilibrium of an Hamiltonian chain of anharmonic oscillators On the approach to equilibrium of an Hamiltonian chain of anharmonic oscillators

1997-04-25

arxiv.org/abs/cond-mat/9704213v1

Physics

Condensed Matter

Statistical Mechanics

8 pages, 5 figures

Scientific paper

10.1209/epl/i1997-00471-9

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 however to arrive to equilibrium diverges when
$g \to 0$, $g$ being the anharmonicity.

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