Reconstructions of scalar field dark energy models from new holographic dark energy in Galileon universe
Department of Mathematics, Indian Institute of Engineering Science and Technology, Howrah-711 103, Shibpur, India
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Revised: 25 October 2014
Accepted: 12 November 2014
Published online: 23 December 2014
Here we briefly discuss the Galileon gravity theory and modified Friedmann equations. By considering new holographic dark energy (NHDE) in the framework of Galileon gravity, we found the energy density, pressure, equation of state and the deceleration parameter in terms of the scale factor. Subsequently, we study the correspondence between the NHDE in the framework of Galileon gravity with other dark energies like quintessence, k-essence, tachyon, dilaton, hessence and DBI-essence dark energies and construct the scalar field and corresponding scalar potentials which describe the dynamics of the scalar fields graphically. All the dark energy models, the scalar field and the potential decrease due to the evolution of the universe.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2014