New Constraints on Varying Alpha
Astrophysics
2007-05-23 v1 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
I briefly present some current theoretical motivations for time or space variations of the fundamental constants of nature and review current key observational results. I focus on the fine-structure constant, and particularly on measurements using quasars and the cosmic microwave background. I also compare various observational results to the simplest model-building expectations.
Cite
@article{arxiv.astro-ph/0405630,
title = {New Constraints on Varying Alpha},
author = {C. J. A. P. Martins},
journal= {arXiv preprint arXiv:astro-ph/0405630},
year = {2007}
}
Comments
8 pages, review talk at the XXXIX Rencontres de Moriond (La Thuile, March 2004), to appear in the proceedings