Asymptotic Dynamics of Breathers in Fermi-Pasta-Ulam Chains

Abstract

We study the asymptotic dynamics of breathers in finite Fermi-Pasta-Ulam chains at zero and non-zero temperatures. While such breathers are essentially stationary and very long-lived at zero temperature, thermal fluctuations tend to lead to breather motion and more rapid decay.

References in corpus (3)

• Energy Relaxation in Nonlinear One-Dimensional Lattices
• Slow energy relaxation and localization in 1D lattices
• Energy Relaxation in Fermi-Pasta-Ulam Arrays

Cited by in corpus (9)

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• Stretched--exponential relaxation in arrays of coupled rotators
• Delocalization-Localization Transition due to Anharmonicity
• Energy thresholds of discrete breathers in thermal equilibrium and relaxation processes
• Discrete breathers in protein secondary structure
• Nonlinear dynamics determines the thermodynamic instability of condensed matter in vacuo