Localization of energy in FPU chains

@article{Berchialla2004LocalizationOE,
  title={Localization of energy in FPU chains},
  author={Luisa Berchialla and L. Galgani and A. Giorgilli},
  journal={Discrete and Continuous Dynamical Systems},
  year={2004},
  volume={11},
  pages={855-866}
}
  • Luisa Berchialla, L. Galgani, A. Giorgilli
  • Published 2004
  • Physics
  • Discrete and Continuous Dynamical Systems
    • We revisit the celebrated model of Fermi, Pasta and Ulam with the aim of investigating, by numerical computations, the trend towards equipartition in the thermodynamic limit. We concentrate our attention on a particular class of initial conditions, namely, with all the energy on the first mode or the first few modes. We observe that the approach to equipartition occurs on two different time scales: in a short time the energy spreads up by forming a packet involving all low--frequency… CONTINUE READING
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    57 Citations
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    57 Citations
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