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The quantum effect on Friedmann equation in FRW universe

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arxiv 1712.04362 v1 pith:GNHAU4L2 submitted 2017-12-12 gr-qc

Wei Zhang , Xiao-Mei Kuang This is my paper · ORCID
classification gr-qc
keywords equationfriedmannmodifieduniversecosmiceffectquantumbounce
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We study the modified Friedmann equation in the Friedmann-Robertson-Walker universe with quantum effect. Our modified results mainly stem from the new entropy-area relation and the novel idea of T. Padmanabhan, who considers the cosmic space to be emerged from the cosmic time progresses, so that the expansion rate of the universe is determined by the difference of degrees of freedom between the holographic surface and the bulk inside. We also discuss the possibility of having bounce cosmological solution from the modified Friedmann equation in spatially flat geometry.

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Cited by 1 Pith paper

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  1. First Law of Thermodynamics and Emergence of Cosmic Space in a Non-Flat Universe

    gr-qc 2019-08 conditional novelty 5.0 of 10

    In a non-flat Friedmann universe, the unified first law dE = TdS + WdV and the energy-flux form -dE = TdS are consistent only when the horizon volume is taken as the areal volume, not the proper invariant volume.

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