Solutions of the spatially-dependent mass Dirac equation with the spin and pseudospin symmetry for the Coulomb-like potential

Date

2010-03-15

Author

IKHDAİR, SAMEER
Sever, Ramazan

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We study the effect of spatially-dependent mass function over the solution of the Dirac equation with the Coulomb potential in the (3 + 1)-dimensions for any arbitrary spin-orbit kappa state. In the framework of the spin and pseudospin symmetry concept, the analytic bound state energy eigenvalues and the corresponding upper and lower two-component spinors of the two Dirac particles are obtained by means of the Nikiforov-Uvarov method, in closed form. This physical choice of the mass function leads to an exact analytical solution for the pseudospin part of the Dirac equation. The special cases kappa = +/- 1(l = (l) over bar = 0; i.e., s-wave), the constant mass and the non-relativistic limits are briefly investigated.

Subject Keywords

Nikiforov-Uvarov method, Spatially-dependent mass, Coulomb potential, Bound states, Pseudospin symmetry, Dirac equation, Spin symmetry

URI

https://hdl.handle.net/11511/62615

Collections

Department of Physics, Article