Class of localized structures in nonlinear lattices
- 1 October 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 46 (13) , 8652-8654
- https://doi.org/10.1103/physrevb.46.8652
Abstract
The existence of a new class of localized structures in nonlinear lattices is proved analytically and it is pointed out that such excitations have been recently observed experimentally [B. Denardo et al., Phys. Rev. Lett. 68, 1730 (1992)] in the form of the so-called ‘‘noncutoff kinks.’’ These localized structures appear to be due to nonlinearity-induced breaking of symmetry between two equivalent eigenmodes of the lattice, and they probably exist in a large variety of nonlinear discrete systems.Keywords
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