Constraints on scalar-tensor theories in an accelerating universe

Details Constraints on scalar-tensor theories in an accelerating universe Constraints on scalar-tensor theories in an accelerating universe

Feb 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..555..551p&link_type=abstract

Cosmology and Particle Physics: CAPP 2000. AIP Conference Proceedings, Volume 555, pp. 551-554 (2001).

Physics

Gravity In More Than Four Dimensions, Kaluza-Klein Theory, Unified Field Theories, Alternative Theories Of Gravity

Scientific paper

We consider a presently accelerating universe in the framework of a scalar-tensor theory of gravity. We show how one can reconstruct the full theory namely, the field potential and the functional form of the scalar-gravity coupling along with the present density of dustlike matter using the following cosmological observations: luminosity distance data and linear dustlike matter density fluctuations data, both as functions of redshift. On the other hand luminosity distance observations on their own provide powerful constraints on classes of scalar-tensor theories. .

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