Fine Structure Constant, Domain Walls, and Generalized Uncertainty   Principle in the Universe
  We study the corrections to the fine-structure constant from the generalized uncertainty principle in the spacetime of a domain wall. We also calculate the corrections to the standard formula to the energy of the electron in the hydrogen atom to the ground state, in the case of spacetime of a domain wall and generalized uncertainty principle. The results generalize the cases known in literature. 
Luigi Tedesco
astro-ph.CO