Holographic reconstruction of the k-essence and dilaton models
نویسنده
چکیده
We propose an holographic k-essence and dilaton models of dark energy. The correspondence between the k-essence and dilaton energy densities with the holographic density, allows the reconstruction of the potential and the fields for the k-essence and dilaton models in flat FRW background. For the proposed infrared cut-off the reconstruction was made for the two cases of the constant α: for α < 1 the model presents phantom crossing and the reconstruction was made in the region before the ω = −1 crossing for the EoS parameter. The cosmological dynamics for α > 1 was also reconstructed. The reconstruction is consistent with the observational data PACS: 98.80.-k, 95.36.+x
منابع مشابه
New infrared cut-off for the holographic scalar fields models of dark energy
Introducing a new infrared cut-off for the holographic dark-energy, we study the correspondence between the quintessence, tachyon, K-essence and dilaton energy density with this holographic dark energy density in the flat FRW universe. This correspondence allows to reconstruct the potentials and the dynamics for the scalar fields models, which describe accelerated expansion. PACS: 98.80.-k, 95....
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