XXXVIII International Workshop on High Energy Physics and Field Theory “Current issues in gravitation and cosmology”

The correspondence of generalized entropic cosmology with F(T) and F(Q) gravity

24 нояб. 2026 г., 10:40

25m

Morning session 1

Speaker

Sergey Odintsov (Space Sciences Institute. (ICE-CSIC) and ICREA, Barcelona)

Описание

Abstract
Entropic cosmology based on generalised entropy due to S.~Nojiri, S.~D.~Odintsov and V.~Faraoni, %``From nonextensive statistics and black hole entropy to the holographic dark universe,'' Phys. Rev. D \textbf{105} (2022) no.4, 044042 doi:10.1103/PhysRevD.105.044042 is considered. All known non-extreme entropies (Tsallis, Renyi, Barrow, loop cosmology, etc) are particular cases of such generalised entropy. BH thermodynamics for non-extreme entropies is developed and some its problems are discussed. Deep relation between entropic cosmology and modified gravities of so-called F(T) and F(Q) gravities is found. ACT/Planck consistent inflation is shown to occur too.

Links:
Phys.Rev.D 105 (2022) 4, 044042
• e-Print: 2201.02424 [gr-qc] Phys.Dark Univ. 48 (2025) 101899
• e-Print: 2502.15272 [gr-qc]