Holographic energy density in the Brans-Dicke teory

Details Holographic energy density in the Brans-Dicke teory Holographic energy density in the Brans-Dicke teory

2005-01-15

arxiv.org/abs/hep-th/0501118v1

Physics

High Energy Physics

High Energy Physics - Theory

9 pages

Scientific paper

We study cosmological applications of the holographic energy density. Considering the holographic energy density as a dynamical cosmological constant, we need the Brans-Dicke theory as a dynamical framework instead of general relativity. In this case we use the Bianchi identity as a consistency relation to obtain physical solutions. It is shown that the future event horizon as the IR cutoff provides the dark energy in the Brans-Dicke theory. Furthermore the role of the Brans-Dicke scalar is clarified in the dark energy-dominated universe by calculating its equation of state.

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