Nonlinear Sciences – Pattern Formation and Solitons
Scientific paper
1999-07-14
Phys. Rev. E 62, R53-R56 (2000).
Nonlinear Sciences
Pattern Formation and Solitons
4 pages (LaTex) with 6 figures (EPS)
Scientific paper
10.1103/PhysRevE.62.R53
We consider a curved chain of nonlinear oscillators and show that the interplay of curvature and nonlinearity leads to a symmetry breaking when an asymmetric stationary state becomes energetically more favorable than a symmetric stationary state. We show that the energy of localized states decreases with increasing curvature, i.e. bending is a trap for nonlinear excitations. A violation of the Vakhitov-Kolokolov stability criterium is found in the case where the instability is due to the softening of the Peierls internal mode.
Christiansen Peter L.
Gaididei Yu. B.
Mingaleev Serge F.
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