Entropic Accelerating Universe
arXiv:1002.4278 · doi:10.1016/j.physletb.2010.12.025
Abstract
To accommodate the observed accelerated expansion of the universe, one popular idea is to invoke a driving term in the Friedmann-Lemaitre equation of dark energy which must then comprise 70% of the present cosmological energy density. We propose an alternative interpretation which takes into account the entropy and temperature intrinsic to the horizon of the universe due to the information holographically stored there. Dark energy is thereby obviated and the acceleration is due to an entropic force naturally arising from the information storage on the horizon surface screen. We consider an additional quantitative approach inspired by surface terms in general relativity and show that this leads to the entropic accelerating universe.
14 pages, 1 figure, extended and clarified
References in corpus (1)
Cited by in corpus (9)
- General Covariance in Gravity at a Lifshitz Point
- Constraining Entropic Cosmology
- Debye entropic force and modified Newtonian dynamics
- Noncommutative Geometry Inspired Entropic Inflation
- CMB acoustic scale in the entropic-like accelerating universe
- Does entropic force always imply the Newtonian force law?
- Entropic dark energy and sourced Friedmann equations
- Considerations of Cosmic Acceleration
- Action in the Entropic Revolution of Newtonian Gravity