Holographic Dark Energy Model and Scalar-Tensor Theories

A. Frolov; A.D. Macorra; A.G. Cohen; A.G. Riess; A.G. Riess; A.G. Riess; B. Boisseau; B. Feng; B. Ratra; B. Ratra; C. Armendariz-Picon; C.B. Netterfield; C.L. Bennett; C.M. Will; D. Bak; D. Pavon; D.N. Spergel; D.N. Spergel; E. Poisson; E.E. Flanagan; G.W. Gibbons; G.W. Gibbons; H.D.S. Hsu; J. Frieman; J. Hao; J.D. Bekstein; J.D. Bekstein; J.D. Bekstein; J.D. Bekstein; J.S. Alcaniz; L. Melchiorri; L. Susskind; M. Li; M.K. Mak; M.R. Setare; N. Banerjee; N.W. Halverson; P.F. Gonzalez-Diaz; P.J. Steinhardt; P.J.E. Peebles; R.J. Scherrer; R.R. Caldwell; R.R. Caldwell; S. Carloni; S. Hanany; S. Nojiri; S. Nojiri; S. Perlmutter; S. Perlmutter; S. Weinberg; S.A. Bludman; T. Chiba; T. Damour; T. Padmanabhan; Yousef Bisabr; Z.K. Guo

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Holographic Dark Energy Model and Scalar-Tensor Theories

Abstract

We study the holographic dark energy model in a generalized scalar tensor theory. In a universe filled with cold dark matter and dark energy, the effect of potential of the scalar field is investigated in the equation of state parameter. We show that for a various types of potentials, the equation of state parameter is negative and transition from deceleration to acceleration expansion of the universe is possible.Comment: 11 pages, no figure. To appear in General Relativity and Gravitatio

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