ИСТИНА

We study kink-antikink scattering within the (1+1)-dimensional $\phi^8$ model. In our numerical experiments we observe non-trivial scenarios: kinks reflection without collision, a bound state formation, and bounce off after the collision. We found two critical values of the kinks’ initial velocity, which separate different regimes of the collision process. Besides that, we observe the so-called “escape windows” in the kink-antikink collisions.