Nonlinear Lattices Generated from Harmonic Lattices with Geometric Constraints
arXiv:nlin/0412052 · doi:10.1103/PhysRevB.71.014304
Abstract
Geometrical constraints imposed on higher dimensional harmonic lattices generally lead to nonlinear dynamical lattice models. Helical lattices obtained by such a procedure are shown to be described by sine- plus linear-lattice equations. The interplay between sinusoidal and quadratic potential terms in such models is shown to yield localized nonlinear modes identified as intrinsic resonant modes.
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