Kink-Antikink Interaction Forces and Bound States in a ${\varphi }^4$ Model with Quadratic and Quartic dispersion

G. A. Tsolias, Robert J. Decker, A. Demirkaya +2

We consider the interaction of solitary waves in a model involving the well-known ${\varphi }^4$ Klein-Gordon theory, but now bearing both Laplacian and biharmonic terms with different pref…