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

TL;DR

This paper explores a quantum gravity-inspired dark energy model within Brans-Dicke cosmology, deriving its dynamics and addressing the cosmic coincidence problem, with implications for the universe's accelerated expansion.

Contribution

It introduces entropy-corrected new agegraphic dark energy into Brans-Dicke cosmology and analyzes its effects on cosmic evolution and the coincidence problem.

Findings

Derivation of the dark energy equation of state and deceleration parameter.

Identification of the phantom divide scenario.

Resolution of the cosmic coincidence problem.

Abstract

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.