Holographic dark energy in chameleon tachyon cosmology |
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Authors: | H Farajollahi A Ravanpak G F Fadakar |
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Institution: | 1.Department of Physics,University of Guilan,Rasht,Iran |
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Abstract: | We propose in this paper an interacting holographic dark energy (IHDE) model in chameleon–tachyon cosmology by interaction
between the components of the dark sectors. In the formalism, the interaction term emerges from the scalar field coupling
matter Lagrangian in the model rather than being inserted into the formalism as an external source for the interaction. The
correspondence between the tachyon field and the holographic dark energy (HDE) densities allows to reconstruct the tachyon
scalar field and its potential in a flat FRW universe. The model can show the accelerated expansion of the universe and satisfies
the observational data. |
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