Published August 15, 2002
| Version v1
Journal article
Variations of alpha in space and time
- 1. Theoretical Physics, Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2BZ (United Kingdom)
- 2. DAMTP, Centre for Mathematical Sciences, Cambridge University, Wilberforce Road, Cambridge CB3 0WA (United Kingdom)
Description
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
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.66.043515;
- arXiv
- arXiv:astro-ph/0202129v2;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 66
- Journal Issue
- 4
- Journal Page Range
- p. 043515-043515.6
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35067588
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- COSMOLOGY; EVOLUTION; OSCILLATIONS; SCALAR FIELDS; SOMMERFELD CONSTANT; UNIVERSE; VARIATIONS
Optional Information
- Notes
- (c) 2002 The American Physical Society