Article ID Journal Published Year Pages File Type
7154374 Communications in Nonlinear Science and Numerical Simulation 2019 13 Pages PDF
Abstract
We study the scattering of the φ8 kinks off each other, namely, we consider those φ8 kinks that have power-law asymptotics. The slow power-law fall-off leads to a long-range interaction between the kink and the antikink. We investigate how the scattering scenarios depend on the initial velocities of the colliding kinks. In particular, we observe the 'escape windows' - the escape of the kinks after two or more collisions, explained by the resonant energy exchange between the translational and vibrational modes. In order to elucidate this phenomenon, we also analyze the excitation spectra of a solitary kink and of a composite kink+antikink configuration.
Related Topics
Physical Sciences and Engineering Engineering Mechanical Engineering
Authors
, ,