77 citations · 543 across the 22 of their papers we have counts for
7 papers · 1 filter
False-vacuum bubbles in sphaleron scattering
Manuel A. Martínez Sánchez, Christoph Adam, Danial Saadatmand
We investigate the collision dynamics of two bright sphalerons in a (1+1)-dimensional deformed scalar field theory with a symmetric potential possessing false vacua. Two one-…
Long-time behaviour of sphalerons in models with a false vacuum
Stephen C. Anco, Danial Saadatmand
Evolution of sphalerons in a class of quartic Klein-Gordon models are studied under a growing perturbation. Sphalerons are unstable lump-like solutions that arise from a saddle poi…
Variational Approach to Excited Fermions on Kinks
Herbert Weigel, Danial Saadatmand
We study the back-reaction of fermion fields on the kink solution in one space and one time dimension. We employ a variational procedure to determine an upper limit for the minimum…
Excited fermions on kinks and the Dirac sea
Danial Saadatmand, Herbert Weigel
We study quantum effects of recently discovered kink solitons which are constructed self-consistently by coupling to a single, excited fermion bound state. Our studies are based on…
Multi-kink scattering in the double sine-Gordon model
Vakhid A. Gani, Aliakbar Moradi Marjaneh, Danial Saadatmand
We study collisions of two, three, and four kinks of the double sine-Gordon model. The initial conditions are taken in a special form in order to provide collision of all kinks in…
Scattering of the double sine-Gordon kinks
Vakhid A. Gani, Aliakbar Moradi Marjaneh, Alidad Askari +2
We study the scattering of kink and antikink of the double sine-Gordon model. There is a critical value of the initial velocity of the colliding kinks, which separates dif…