Deformation of sine-Gordon two-soliton solutions in ${\phi }^4$ kink-antikink configurations

Aliakbar Moradi Marjaneh, Danial Saadatmand, Fabiano C. Simas +2

In this work, we construct analytical kink-antikink $(K\bar{K})$ configurations in the non-integrable ${\phi }^4$ model by mapping exact solutions of the integrable sine-Gordon system vi…