From nonextensive statistics and black hole entropy to the holographic dark universe
Shin’ichi Nojiri, Sergei D. Odintsov, Valerio Faraoni
Abstract
We propose a new entropy construct that generalizes the Tsallis, R\'enyi, Sharma-Mittal, Barrow, Kaniadakis, and loop quantum gravity entropies and reduces to the Bekenstein-Hawking entropy in a certain limit. This proposal is applied to the Schwarzschild black hole and to spatially homogeneous and isotropic cosmology, where it is shown that it can potentially describe inflation and/or holographic dark energy.
Topics & Concepts
PhysicsDark energyEntropy (arrow of time)CosmologySchwarzschild radiusBlack hole thermodynamicsMicro black holeTheoretical physicsHomogeneousBlack hole (networking)Hawking radiationStatistical physicsQuantum mechanicsGravitationRouting protocolRouting (electronic design automation)Computer scienceLink-state routing protocolComputer networkCosmology and Gravitation TheoriesBlack Holes and Theoretical PhysicsGalaxies: Formation, Evolution, Phenomena