Constants and Variations: From Alpha to Omega

Details Constants and Variations: From Alpha to Omega Constants and Variations: From Alpha to Omega

2002-09-23

arxiv.org/abs/gr-qc/0209080v1

Astrophys.Space Sci. 283 (2003) 645-660

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

18 pages, no figures. Plenary Talk presented at the JENAM 2002 Workshop on Varying Fundamental Constants, Porto, 5th September

Scientific paper

10.1023/A:1022571927342

We review some of the history and properties of theories for the variation of the gravitation and fine structure 'constants'. We highlight some general features of the cosmological models that exist in these theories with reference to recent quasar data that is consistent with time-variation in alpha since a redshift of 3.5. The behaviour of a simple class of varying-alpha cosmologies is outlined in the light of all the observational constraints. We discuss the key role played by non-zero vacuum energy and curvature in turning off the variation of constants in these theories and the issue of comparing extra-galactic and local observational data. We also show why black hole thermodynamics does not enable us to distinguish between time variations of different constants.

Affiliated with

Also associated with

No associations

Rating

Constants and Variations: From Alpha to Omega does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Constants and Variations: From Alpha to Omega, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constants and Variations: From Alpha to Omega will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-576619