Mathematics – Logic
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21114301b&link_type=abstract
American Astronomical Society, AAS Meeting #211, #143.01; Bulletin of the American Astronomical Society, Vol. 39, p.995
Mathematics
Logic
Scientific paper
We establish the dynamical attractor behavior of general scalar-tensor theories of dark energy, discussing how dynamical attractors provide a powerful way to analyze classes of theories, predicting common evolutionary characteristics with which we can critique the theories in light of cosmological constraints on the background evolution and also the growth of perturbations, with implications for large scale structure. We highlight how alternative perspectives on the theories, as modified gravity, in the Jordan frame and as the non-minimal coupling of a scalar to matter, in the Einstein frame, can be effectively utilized.
We discuss cosmological implications of strong couplings of a scalar to matter and the conditions under which these give rise to adiabatic instabilities.
The work of RB and NA is supported by the National Science Foundation (NSF) under grants AST-0607018 and PHY-0555216, EF's by NSF grants PHY-0457200 and PHY-0555216, and MT's by NSF grant PHY-0354990 and by Research Corporation.
Agarwal Nishant
Bean Rachel
Flanagan É.
Trodden Mark
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