Litcius/Paper detail

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

Mustafa Şenay

2021Physics Letters B20 citationsDOIOpen Access PDF

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.

Topics & Concepts

Friedmann–Lemaître–Robertson–Walker metricFriedmann equationsPhysicsDark energyCosmologyEntropy (arrow of time)FermionEquation of stateMathematical physicsEinstein field equationsDeceleration parameterEntropic gravityEinsteinClassical mechanicsQuantumQuantum mechanicsQuantum gravityLoop quantum gravityCosmology and Gravitation TheoriesBlack Holes and Theoretical PhysicsNoncommutative and Quantum Gravity Theories