32 citations · 493 across the 47 of their papers we have counts for
8 papers · 1 filter
Non-adiabatic Non-cyclic Generalization of the Berry Phase for a Spin-1/2 Particle in a Rotating Magnetic Field
Siamak S. Gousheh, Azadeh Mohammadi, Leila Shahkarami
In this paper we define a non-dynamical phase for a spin-1/2 particle in a rotating magnetic field in the non-adiabatic non-cyclic case, and this phase can be considered as a gener…
An Investigation of the Casimir Energy for a Fermion Coupled to the Sine-Gordon Soliton with Parity Decomposition
Siamak S. Gousheh, Azadeh Mohammadi, Leila Shahkarami
We consider a fermion chirally coupled to a prescribed pseudoscalar field in the form of the soliton of the sine-Gordon model and calculate and investigate the Casimir energy and a…
Generalized Friedberg-Lee model for CP violation in neutrino physics
N. Razzaghi, S. S. Gousheh
We propose a phenomenological model of Dirac neutrino mass operator based on the Fridberg-Lee (FL) neutrino mass model to include CP violation. By considering the most general set…
Casimir Energy for a Coupled Fermion-Soliton System
Leila Shahkarami, Azadeh Mohammadi, Siamak Sadat Gousheh
In this paper we compute the Casimir energy for a coupled fermion-pseudoscalar field system. In the model considered in this paper the pseudoscalar field is \textit{static} and \te…
Casimir Energy for a Coupled Fermion-Kink System and its stability
Siamak Sadat Gousheh, Azadeh Mohammadi, Leila Shahkarami
We compute the Casimir energy for a system consisting of a fermion and a pseudoscalar field in the form of a prescribed kink. This model is not exactly solvable and we use the phas…
The Radiative Corrections to the Mass of the Kink Using an Alternative Renormalization Program
S. S. Gousheh, A. Mohammadi, M. Asghari +2
In this paper we compute the radiative correction to the mass of the kink in theory in 1+1 dimensions, using an alternative renormalization program. In this newly proposed re…
Casimir Energy For a Massive Dirac Field in One Spatial Dimension: A Direct Approach
R. Saghian, M. A. Valuyan, A. Seyedzahedi +1
In this paper we calculate the Casimir energy for a massive fermionic field confined between two points in one spatial dimension, with the MIT Bag Model boundary condition. We comp…
A Renormalization Program for Systems with Non-Perturbative Conditions
Siamak S. Gousheh, Farid Charmchi
In this paper we introduce an alternative renormalization program for systems with non-perturbative conditions. The non-perturbative conditions that we concentrate on in this paper…