Interacting entropy-corrected new agegraphic dark energy in Brans-Dicke cosmology

Details Interacting entropy-corrected new agegraphic dark energy in Brans-Dicke cosmology Interacting entropy-corrected new agegraphic dark energy in Brans-Dicke cosmology

2010-04-21

arxiv.org/abs/1004.3607v3

Gen. Relativ. Grav. (2011) 43:27-39

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, no figure, accepted for publication in Gen. Relativ. Grav

Scientific paper

10.1007/s10714-010-1072-7

Motivated by a recent work of one of us [1], we extend it by using quantum (or entropy) corrected new agegraphic dark energy in the Brans-Dicke cosmology. The correction terms are motivated from the loop quantum gravity which is one of the competitive theories of quantum gravity. Taking the non-flat background spacetime along with the conformal age of the universe as the length scale, we derive the dynamical equation of state of dark energy and the deceleration parameter. An important consequence of this study is the phantom divide scenario with entropy-corrected new agegraphic dark energy. Moreover, we assume a system of dark matter, radiation and dark energy, while the later interacts only with dark matter. We obtain some essential expressions related with dark energy dynamics. The cosmic coincidence problem is also resolved in our model.

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