Low-energy chaos in the Fermi - Pasta - Ulam problem

Published under licence by IOP Publishing Ltd
, , Citation D L Shepelyansky 1997 Nonlinearity 10 1331 DOI 10.1088/0951-7715/10/5/017

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1 Laboratoire de Physique Quantique, UMR C5626 du CNRS, Université Paul Sabatier, F-31062 Toulouse Cedex 4, France

Dates

  1. Received 14 November 1996

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0951-7715/10/5/1331

Abstract

A possibility that in the FPU problem the critical energy for chaos goes to zero when the number of particles in the chain increases is discussed. The distribution for long linear waves in this regime is found and an estimate for the new border of the transition to energy equipartition is given.

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10.1088/0951-7715/10/5/017