Probing dark energy with varying fundamental couplings

C. J. A. P. Martins, N. J. Nunes, G. Robbers

Abstract.
Assuming that the variations of parameters of nature and the current acceleration of the universe are related and governed by the evolution of a single scalar field, we show how information can be obtained on the nature of dark energy from observational detection of (or constraints on) cosmological variations of the fine structure constant and the proton-to-electron mass ratio. We comment on the current observational status, and on the prospects for future spectrographs such as ESPRESSO and CODEX.

COSMO/CosPA 2010
Tokyo, Japan
September 2010

Type: Poster