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Title: Asymptotic dynamics of breathers in Fermi-Pasta-Ulam chains
Author: Reigada Sanz, Ramon
Sarmiento, Antonio
Lindenberg, Katja
Keywords: Física estadística
Dinàmica reticular
Statistical physics
Lattice dynamics
Issue Date: 2002
Publisher: The American Physical Society
Abstract: We carry out a numerical study of the asymptotic dynamics of breathers in finite Fermi-Pasta-Ulam chains at zero and nonzero temperatures. While at zero temperature such breathers remain essentially stationary and decay extremely slowly over wide parameter ranges, thermal fluctuations tend to lead to breather motion and more rapid decay. In both cases the decay is essentially exponential over long time intervals.
Note: Reproducció del document publicat a:
It is part of: Physical Review E, 2002, vol. 66, núm. 4, p. 046607-1-046607-6
Related resource:
ISSN: 1063-651X
Appears in Collections:Articles publicats en revistes (Ciència dels Materials i Química Física)

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