5 papers
Collision Dynamics of False-Vacuum Oscillons
J. G. F. Campos, N. S. Manton, Azadeh Mohammadi
We study the collision dynamics of localized oscillons in two classes of -dimensional scalar field theories with metastable false vacua, a normal class with a positive quart…
Generalized BPS magnetic monopoles in inhomogeneous Yang-Mills-Higgs models
Filipe Rodrigues da Silva, Azadeh Mohammadi
We present a non-Abelian model for magnetic monopoles in inhomogeneous media, based on a generalization of the standard 't~Hooft-Polyakov model. The medium is described by spatiall…
Resonance with quasinormal modes in long-range kinks' collisions
J. G. F. Campos, Azadeh Mohammadi, T. Romanczukiewicz
We consider a rational scalar field model in (1+1)-dimensions where the long-range character of the kinks is controllable. We show via numerical simulations that kinks with long-ra…
On the localized and delocalized modes in kink-antikink interactions: a toy model
Carlos E. S. Santos, João G. F. Campos, Azadeh Mohammadi
This study deals with a piecewise scalar field theory in dimensions. The scalar field potential is designed with a triple-well shape, engendering kink solutions with…
Collective coordinates method for long-range kink collisions
J. G. F. Campos, A. Mohammadi, T. Romanczukiewicz
In this paper, we explored a class of potentials with three minima that support kink solutions exhibiting one long-range tail. We analyzed antikink-kink interactions using an effec…