Modulational instability and resonant wave modes act on the metastability of oscillator chains
arXiv:1406.0945 · doi:10.1103/PhysRevE.90.032919
Abstract
We describe the emergence and interactions of breather modes and resonant wave modes within a two-dimensional ring-like oscillator chain in a microcanonical situation. Our analytical results identify different dynamical regimes characterized by the potential dominance of either type of mode. The chain is initially placed in a meta-stable state which it can leave by passing over the brim of the applied Mexican-hat-like potential. We elucidate the influence of the different wave modes on the mean-first passage time. A central finding is that also in this complex potential landscape a fast noise-free escape scenario solely relying on nonlinear cooperative effects is accomplishable even in a low energy setting.
arXiv comment12 pages, 12 figures
References in corpus (5)
- Polymer Translocation througha Pore in a Membrane
- Polymer Release out of a Spherical Vesicle through a Pore
- Barrier crossing of semiflexible polymers
- Self-organized escape of oscillator chains in nonlinear potentials
- Resonance-like phenomena of the mobility of a chain of nonlinear coupled oscillators in a two-dimensional periodic potential