Interacting agegraphic dark energy models in phase space - Astrophysics > Cosmology and Nongalactic AstrophysicsReportar como inadecuado




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Abstract: Agegraphic dark energy, has been recently proposed, based on the so-calledKarolyhazy uncertainty relation, which arises from quantum mechanics togetherwith general relativity. In the first part of the article we study the originalagegraphic dark energy model by including the interaction between agegraphicdark energy and pressureless dark matter. The phase space analysis was madeand the critical points were found, one of which is the attractor correspondingto an accelerated expanding Universe.Recent observations of near supernova show that the acceleration of Universedecreases. This phenomenon is called the transient acceleration. In the secondpart of Article we consider the 3-component Universe composed of a scalarfield, interacting with the dark matter on the agegraphic dark energybackground. We show that the transient acceleration appears in frame of such amodel. The obtained results agree with the observations.



Autor: O. A. Lemets, D. A. Yerokhin, L.G. Zazunov

Fuente: https://arxiv.org/







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