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arXiv 2004-05-31 0 views

New Constraints on Varying Alpha

Martins, C. J. A. P.

Original · EN

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.

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