Antikink-kink (K¯ K) collisions in the ϕ 6 model exhibit resonant scattering although the ϕ 6
kinks do not support any bound states to which energy could be transferred. In P. Dorey et …

In this paper the scattering between a wobbling kink and a wobbling antikink in the standard
ϕ 4 model is numerically investigated. The dependence of the final velocities, wobbling …

The moduli space approximation to kink dynamics permits a relativistic generalization if the
Derrick scaling parameter is used as a collective coordinate. We develop a perturbative …

Moduli spaces—finite-dimensional, collective coordinate manifolds—for kinks and antikinks
in ϕ 4 theory and sine-Gordon theory are reconsidered. The field theory Lagrangian …

A bstract We show that spectral walls are common phenomena in the dynamics of kinks in
(1+ 1) dimensions. They occur in models based on two or more scalar fields with a …

In this paper the interaction between the shape modes of the wobbling kinks arising in the
family of two-component MSTB scalar field theory models is studied. The spectrum of the …

We show that thick spectral walls exist in antikink-kink collisions in the ϕ 6 model. In this
model, they are triggered by the so-called delocalized modes that do not exist in the single …

A bstract We study the collision of a kink and an antikink in the double sine-Gordon model
with and without the excited vibrational mode. In the latter case, we find that there is a limited …

Kink-antikink scattering in the ϕ 4 model is investigated in the limit when the static inter-
soliton force vanishes. We observe the formation of spectral walls and, further, identify a new …

We show that in some kink-antikink collisions, sphalerons, ie, unstable static solutions—
rather than the asymptotic free soliton states—can be the source of the internal degrees of …