Publication: Sine-gordon breathers on spatially periodic potentials
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1992-04-15
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American Physical Society
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Abstract
We have carried out an extensive simulation program to study the behavior of sine-Gordon
breathers initially at rest in the presence of perturbations that are periodic in space and constant
in time. We report here a number of different observed phenomena and the range of the relevant
parameters (the ratio of the breather width to the perturbation wavelength and the perturbation
magnitude) for which each one of them occurs. We also propose some qualitative explanations valid
for certain regimes.
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Physical Review A, vol. 45, n. 8, 15 april 1992. Pp 6031-6037