Variations of Alpha in Space and Time release_fj57hpr3pngkrprpyg6fulpdum

Abstract

We study inhomogeneous cosmological variations in the fine structure 'constant', α , in Friedmann universes. Inhomogeneous motions of the scalar field driving changes in α display spatial oscillations that decrease in amplitude with increasing time. The inhomogeneous evolution quickly approaches that found for exact Friedmann universes. We prove a theorem to show that oscillations of α in time (or redshift) cannot occur in Friedmann universes in the BSBM theories considered here.
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