Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-11-03
Phys.Lett.B674:204-209,2009
Physics
High Energy Physics
High Energy Physics - Theory
7 papges, no figure, comments are welcome! v2:Typos corrected, some references added; v3:typoes corrected, more references add
Scientific paper
10.1016/j.physletb.2009.03.020
The influence of the generalized uncertainty principle (GUP) and extended uncertainty principle (EUP) on the thermodynamics of the Friedmann-Robertson-Walker (FRW) universe has been investigated. It is shown that the entropy of the apparent horizon of the FRW universe gets a correction if one considers the effect of the GUP or EUP. Moreover, starting with the modified entropy and applying the first law of thermodynamics, $dE=TdS$, to the apparent horizon of the FRW universe, we obtain the modified Friedmann equations. The influence of the GUP or EUP on the thermodynamics of the FRW universe provides a deep insight into the understanding of the quantum gravity or large length scale corrections to the dynamics of the FRW universe.
Li Ming-Fan
Ren Ji-Rong
Zhu Tianfei
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