8 research outputs found
Thermodynamic properties of neutral particle in presence of Topological defects in Magnetic Cosmic String Background
In this paper, we study the covariant form of the non-relativistic
Schrodinger-Pauli equation in the space-time generated by a cosmic string and
discuss the solutions of this equation in present of interaction between the
magnetic dipole momentum and electromagnetic field. We study the influence of
the topology on this system. We obtain the solution of radial part as well as
the energy levels. We consider all thermodynamic properties of neutral particle
in magnetic cosmic string background by using an approach based on the
partition function method
The DKP oscillator with a linear interaction in the cosmic string space-time
We study the relativistic quantum dynamics of a DKP oscillator field subject
to a linear interaction in cosmic string space-time in order to better
understand the effects of gravitational fields produced by topological defects
on the scalar field. We obtain the solution of DKP oscillator in the cosmic
string background. Also, we solve it with an ansatz in presence of linear
interaction. We obtain the eigenfunctions and the energy levels of the
relativistic field in that background.Comment: 14 pages, no figure, comments are welcom
The Dirac oscillator in a spinning cosmic string spacetime
We examine the effects of gravitational fields produced by topological
defects on a Dirac field and a Dirac oscillator in a spinning cosmic string
spacetime. We obtain the eigenfunctions and the energy levels of the
relativistic field in that background and consider the effect of various
parameters, such as the frequency of the rotating frame, the oscillator's
frequency, the string density and other quantum numbers.Comment: 12 pages, 3 figure
Erratum to: Scattering and bound states for the Hulthén potential in a cosmic string background
In this work we study the Dirac equation with vector and scalar potentials in the spacetime generated by a cosmic string. Using an approximation for the centrifugal term, a solution for the radial differential equation is obtained. We consider the scattering states under the Hulthén potential and obtain the phase shifts. From the poles of the scattering S-matrix the states energies are determined as well
Scattering and bound states for the Hulthén potential in a cosmic string background
In this work we study the Dirac equation with vector and scalar potentials in the spacetime generated by a cosmic string. Using an approximation for the centrifugal term, a solution for the radial differential equation is obtained. We consider the scattering states under the Hulthén potential and obtain the phase shifts. From the poles of the scattering S-matrix the states energies are determined as well