The affective factors on the uncertainty in the collisions of the soliton solutions of the double field sine-Gordon system

Inspired by the well known sine-Gordon equation, we present a symmetric coupled system of two real scalar fields in 1 + 1 dimensions. There are three different topological soliton solutions which be labelled according to their topological charges. These solitons can absorb some localized non-dispersive wave packets in collision processes. It will be shown numerically, during collisions between solitons, there will be an uncertainty which originates from the amount of the maximum amplitude and arbitrary initial phases of the trapped wave packets. (C) 2018 Elsevier B.V. All rights reserved.