1202.1281 (Miguel Zumalacarregui)

Modified Entropic Gravity and Cosmology    [PDF]

Miguel Zumalacarregui

It has been recently proposed that gravity might be an entropic force.
Although a well defined fundamental description for such a mechanism is still
lacking, it is still possible to address the viability of phenomenological
models of entropic-inspired modified gravities. I will summarize some recent
work directed to using cosmology as a tool to constraint scenarios in which the
modifications are aimed to explain the physics behind dark energy and
inflation. A phenomenological modification is able to explain cosmic
acceleration at the background level and fit observations, but simple inflation
models with higher curvature corrections are in conflict with late time matter
domination.

View original: http://arxiv.org/abs/1202.1281