23 citations · 37 across the 8 of their papers we have counts for
10 papers · 1 filter
Momentum Flux for Small-Amplitude Oscillons
N. S. Manton, Azadeh Mohammadi
An oscillon in scalar field theory in -dimensions is an oscillating, localised, almost periodic classical solution that slowly radiates and decays to the vacuum solution. We…
Vortex-Antivortex Annihilation from BPS Equations
J. P. S. Neto, J. G. F. Campos, A. Mohammadi
In this work, we introduce a vortex-impurity model that admits BPS configurations containing both vortices and antivortices and allows vortex-antivortex annihilation to be describe…
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…
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…
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…
Abelian Chern-Simons vortices in the presence of magnetic impurities
Dionisio Bazeia, João G. F. Campos, Azadeh Mohammadi
This work deals with Abelian Chern-Simons vortices interacting with magnetic impurities. We compute static solutions with winding numbers zero and one. Then, we develop a numerical…
Collisions between kinks with long-range tails: a simple and efficient method
João G. F. Campos, Azadeh Mohammadi
We construct initial configurations for the scattering between kinks with long-range tails. For this purpose, we exploit kink solutions in the presence of Bogomol'nyi-Prasad-Sommer…
Fermionic spectral walls in kink collisions
João G. F. Campos, Azadeh Mohammadi, Jose M. Queiruga +2
We show that a spectral wall, i.e., an obstacle in the dynamics of a bosonic soliton, which arises due to the transition of a normal mode into the continuum spectrum, exists after…