Elsevier

Physics Letters B

Volume 820, 10 September 2021, 136536
Physics Letters B

Entropic gravity corrected by q-statistics, and its implications to cosmology

https://doi.org/10.1016/j.physletb.2021.136536Get rights and content
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Abstract

Considering Verlinde's entropic gravity proposal, we focus on the effects of fermionic q deformation on Einstein's field equations and Friedmann equations. For this purpose, we represent the thermodynamical properties of the deformed fermion gas model in two-dimensional space. To describe the behavior of the quantum black holes, deformed Einstein field equations are derived with the help of the deformed entropy function. Moreover, deformed Friedmann equations are investigated by using Friedmann-Robertson-Walker (FRW) metric. We also present the effective ones of the energy density, the pressure, and the equation of state for the dark energy. Lastly, we derive an analytical expression of the effective density parameter of dark energy.

Keywords

q-Deformed
Gravity
Dark energy

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