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Asymptotic dynamics of breathers in Fermi-Pasta-Ulam chains

Reigada, R ; Sarmiento, A ; Lindenberg, Katja

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 2002-10, Vol.66 (4 Pt 2), p.046607-046607, Article 046607

United States: The American Physical Society

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  • Título:
    Asymptotic dynamics of breathers in Fermi-Pasta-Ulam chains
  • Autor: Reigada, R ; Sarmiento, A ; Lindenberg, Katja
  • Assuntos: Dinàmica reticular ; Física estadística ; Lattice dynamics ; Statistical physics ; Termodinàmica ; Thermodynamics
  • É parte de: Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 2002-10, Vol.66 (4 Pt 2), p.046607-046607, Article 046607
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: 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.
  • Editor: United States: The American Physical Society
  • Idioma: Inglês
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