Discrete breathers in thermal equilibrium: distributions and energy gaps
arXiv:cond-mat/0409450 · doi:10.1016/j.physd.2005.02.002
Abstract
We study a discrete two-dimensional nonlinear system that allows for discrete breather solutions. We perform a spectral analysis of the lattice dynamics at thermal equilibrium and use a cooling technique to measure the amount of breathers at thermal equilibrium. Our results confirm the existence of an energy threshold for discrete breathers. The cooling method provides with a novel computational technique of measuring and analyzing discrete breather distribution properties in thermal equilibrium.
20 pages, 14 figures
References in corpus (14)
- Bright gap solitons of atoms with repulsive interaction
- Discrete breathers in nonlinear lattices: Experimental detection in a Josephson array
- Observation of breathers in Josephson ladders
- Experimental Generation and Observation of Intrinsic Localized Spin Wave Modes in an Antiferromagnet
- Statistical mechanics of a nonlinear discrete system
- A simple statistical explanation for the localization of energy in nonlinear lattices with two conserved quantities
- Optical manipulation of intrinsic localized vibrational energy in cantilever arrays
- Localization and Coherence in Nonintegrable Systems
- Energy Relaxation in Nonlinear One-Dimensional Lattices
- Wave scattering by discrete breathers
- Cooling nonlinear lattices toward localisation
- Slow energy relaxation and localization in 1D lattices
- Asymptotic Dynamics of Breathers in Fermi-Pasta-Ulam Chains
- Intrinsic localized modes in the charge-transfer solid PtCl
Cited by in corpus (12)
- Intermittent many-body dynamics at equilibrium
- q-Breathers in Fermi-Pasta-Ulam chains: existence, localization and stability
- Renormalized waves and discrete breathers in -FPU chains
- Energy transfer in strained graphene assisted by discrete breathers excited by external ac driving
- Thermally populated intrinsic localized modes in pure alkali halide crystals
- Effect of discrete breathers on the specific heat of a nonlinear chain
- Dynamical glass in weakly non-integrable Klein-Gordon chains
- Wavelet imaging of transient energy localization in nonlinear systems at thermal equilibrium: the case study of NaI crystals at high temperature
- Energy thresholds of discrete breathers in thermal equilibrium and relaxation processes
- The notion of persistence applied to breathers in thermal equilibrium
- Mechanisms for transient localization in a diatomic nonlinear chain
- Equilibrium and Non-equilibrium Gross-Pitaevskii Lattice Dynamics: Interactions, Disorder, and Thermalization