Kink scattering from a parity-time-symmetric defect in the ${\varphi }^4$ model

Danial Saadatmand, Sergey V. Dmitriev, Denis I. Borisov +3

In this paper, we study the ${\varphi }^4$ kink scattering from a spatially localized $\mathcal{P}\mathcal{T}$-symmetric defect and the effect of the kink's internal mode (IM) is discussed. It is dem…