Scale invariance, unimodular gravity and dark energy
We demonstrate that the combination of the ideas of unimodular gravity, scale invariance, and the existence of an exactly massless dilaton leads to the evolution of the universe supported by present observations: inflation in the past, followed by the radiation and matter dominated stages and accelerated expansion at present. All mass scales in this type of theories come from one and the same source. © 2008 Elsevier B.V. All rights reserved.
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Keywords: Dark energy ; Non-minimal coupling ; Unimodular gravity ; Inflation ; Higgs field ; Standard Model ; Cosmological Constant ; Standard Model ; Inflation ; Symmetry ; Matter ; Universe ; Field
Record created on 2010-09-07, modified on 2016-08-08