Phys. Rev. D 66, 043515 (2002) [6 pages]Variations of alpha in space and timeReceived 6 February 2002; published 19 August 2002 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 Bekenstein-Sandvik-Barrow-Magueijo theories considered here. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.66.043515
DOI:
10.1103/PhysRevD.66.043515
PACS:
98.80.Cq, 98.80.Es
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