Threshold behavior of a driven incommensurate harmonic chain
- 1 December 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 38 (12), 6338-6350
- https://doi.org/10.1103/physreva.38.6338
Abstract
The dynamics of a one-dimensional harmonic chain in the presence of a strong, incommensurate, sinusoidal potential and a uniform force F is investigated numerically. A threshold force exists above which steady-state motion occurs. Near threshold, the linear and nonlinear responses of the system exhibit nontrivial critical behavior. Critical exponents describing the transition to a moving state are calculated, and scaling relations between them are conjectured.
Keywords
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