@article{FG2008,
abstract = {Nonlinear classical Hamiltonian lattices exhibit generic solutions
- discrete breathers. They are time-periodic and (typically exponentially)
localized in space. The lattices have discrete translational symmetry.
Discrete breathers are not confined to certain lattice dimensions.
We will introduce the concept of these localized excitations and
review their basic properties including dynamical and structural
stability. We then focus on advances in the theory of discrete breathers
in three directions - scattering of waves by these excitations, persistence
of discrete breathers in long transient processes and thermal equilibrium,
and their quantization. The second part of this review is devoted
to a detailed discussion of recent experimental observations and
studies of discrete breathers, including theoretical modelling of
these experimental situations on the basis of the general theory
of discrete breathers. in particular we will focus on their detection
in Josephson junction networks, arrays of coupled nonlinear optical
waveguides, Bose-Einstein condensates loaded on optical lattices,
antiferromagnetic layered structures, PtCl based single crystals
and driven micromechanical cantilever arrays. (C) 2008 Elsevier B.V.
All rights reserved.},
author = {Flach, Sergej and Gorbach, Andrey V},
doi = {10.1016/j.physrep.2008.05.002},
issn = {0370-1573},
journal = {PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS},
month = {oct},
number = {1-3},
pages = {1--116},
title = {{Discrete breathers - Advances in theory and applications}},
volume = {467},
year = {2008}
}