Entropic Corrections to Friedmann Equations
arXiv:1004.0627 · doi:10.1103/PhysRevD.81.104011
Abstract
Recently, Verlinde discussed that gravity can be understood as an entropic force caused by changes in the information associated with the positions of material bodies. In the Verlinde's argument, the area law of the black hole entropy plays a crucial role. However, the entropy-area relation can be modified from the inclusion of quantum effects, motivated from the loop quantum gravity. In this note, by employing this modified entropy-area relation, we derive corrections to Newton's law of gravitation as well as modified Friedman equations by adopting the viewpoint that gravity can be emerged as an entropic force. Our study further supports the universality of the log correction and provides a strong consistency check on Verlinde's model.
4 pages, the version appears in Phys. Rev. D
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Cited by in corpus (12)
- Thermodynamics of apparent horizon and modified Friedman equations
- Lessons from Classical Gravity about the Quantum Structure of Spacetime
- Entropic Corrections to Einstein Equations
- Cosmological Constraints on the Modified Entropic Force Model
- Holography in Action
- Constraining Entropic Cosmology
- Generalized second law of thermodynamics in modified FRW cosmology with corrected entropy-area relation
- Debye entropic force and modified Newtonian dynamics
- The Friedmann equation in modified entropy-area relation from entropy force
- Noncommutative Geometry Inspired Entropic Inflation
- First law of thermodynamics on holographic screens in entropic force frame
- Influence on the entropic force by the virtual degree of freedom on the holographic screen