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2014 | 12 | 4 | 245-255
Article title

Planck-scale corrections to Friedmann equation

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Abstracts
EN
Recently, Verlinde proposed that gravity is an emergent phenomenon which originates from an entropic force. In this work, we extend Verlinde’s proposal to accommodate generalized uncertainty principles (GUP), which are suggested by some approaches to quantum gravity such as string theory, black hole physics and doubly special relativity (DSR). Using Verlinde’s proposal and two known models of GUPs, we obtain modifications to Newton’s law of gravitation as well as the Friedmann equation. Our modification to the Friedmann equation includes higher powers of the Hubble parameter which is used to obtain a corresponding Raychaudhuri equation. Solving this equation, we obtain a leading Planck-scale correction to Friedmann-Robertson-Walker (FRW) solutions for the p = ωp equation of state.
Publisher
Journal
Year
Volume
12
Issue
4
Pages
245-255
Physical description
Dates
published
1 - 4 - 2014
online
23 - 4 - 2014
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Publication order reference
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11534-014-0441-3
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