Cosmological Variation of the Fine Structure Constant versus a new Interaction

Abstract

We show why a dynamically varying fine structure constant does not impact on the Webb group's analysis as suggested by Bekenstein. We also provide a limit on the size of a possible correction to the Dirac Hamiltonian caused by a perturbation due to a dynamically varying alpha in hydrogen.

References in corpus (4)

• Further evidence for a variable fine-structure constant from Keck/HIRES QSO absorption spectra
• Limits on the time variation of the electromagnetic fine-structure constant in the low energy limit from absorption lines in the spectra of distant quasars
• Probing the variability of the fine-structure constant with the VLT/UVES
• Revised ${\alpha }^4$ term of lepton $g-2$ from the Feynman diagrams containing an internal light-by-light scattering subdiagram

Cited by in corpus (2)

• Variation of fundamental constants in space and time: theory and observations
• Fundamental Symmetries and Interactions