The Klein–Gordon equation is considered for the Kratzer potential in the spherical polar coordinate in laboratory frame in noncommutative space. The energy shift due to noncommutativity is obtained via the perturbation theory. After rather cumbersome algebra, we found the eigenfunctions and eigenvalues of the system for a noncommutative phase space.

No abstract

We solve the Duffin-Kemmer-Petiau (DKP) equation with magnetic field in cosmic string background in (1+2)-dimensional space-time. The ansatz method is used in the calculations, and the eigenfunctions as well as the energy eigenvalues are obtained.

No abstract