FRIEDMANN–ROBERTSON–WALKER BRANE COSMOLOGICAL EQUATIONS FROM THE FIVE-DIMENSIONAL BULk (A) d S BLACK HOLE

S Nojiri, SD Odintsov, S Ogushi - International Journal of Modern …, 2002 - World Scientific
In the first part of this work we review the equations of motion for the brane presented in
Friedmann–Robertson–Walker (FRW) form, when the bulk is five-dimensional (A) dS Black …

[HTML][HTML] Modified Friedmann equations from Tsallis entropy

A Sheykhi - Physics Letters B, 2018 - Elsevier
It was shown by Tsallis and Cirto that thermodynamical entropy of a gravitational system
such as black hole must be generalized to the non-additive entropy, which is given by S h= γ …

Barrow entropy corrections to Friedmann equations

A Sheykhi - Physical Review D, 2021 - APS
Recently, Barrow argued that quantum-gravitational effects may introduce intricate, fractal
features on the black hole horizon [JD Barrow,, The area of a rough black hole, Phys. Lett. B …

Thermodynamical properties of apparent horizon in warped DGP braneworld

A Sheykhi, B Wang, RG Cai - Nuclear Physics B, 2007 - Elsevier
In this paper we first obtain Friedmann equations for the (n− 1)-dimensional brane
embedded in the (n+ 1)-dimensional bulk, with intrinsic curvature term of the brane included …

Deep connection between thermodynamics and gravity in Gauss-Bonnet braneworlds

A Sheykhi, B Wang, RG Cai - Physical Review D—Particles, Fields, Gravitation …, 2007 - APS
We disclose a deep connection between thermodynamics and gravity in a general
braneworld model with curvature correction terms on the brane and in the bulk, respectively …

Entropy and universality of the Cardy-Verlinde formula in a dark energy universe

I Brevik, S Nojiri, SD Odintsov, L Vanzo - Physical Review D, 2004 - APS
We study the entropy of a FRW universe filled with dark energy (cosmological constant,
quintessence, or phantom). For the general or time-dependent equation of state p= w ρ the …

[HTML][HTML] Baryogenesis in non-extensive Tsallis Cosmology

GG Luciano, J Gine - Physics Letters B, 2022 - Elsevier
Non-extensive Tsallis thermostatistics is a widespread paradigm to describe large-scale
gravitational systems. In this work we use Tsallis Cosmology to study thermodynamic gravity …

Thermodynamics of interacting holographic dark energy with the apparent horizon as an IR cutoff

A Sheykhi - Classical and Quantum Gravity, 2009 - iopscience.iop.org
As soon as an interaction between holographic dark energy and dark matter is taken into
account, the identification of an IR cutoff with the Hubble radius H− 1, in a flat universe, can …

Tsallis cosmology and its applications in dark matter physics with focus on IceCube high-energy neutrino data

P Jizba, G Lambiase - The European Physical Journal C, 2022 - Springer
In this paper we employ a recent proposal of C. Tsallis and formulate the first law of
thermodynamics for gravitating systems in terms of the extensive but non-additive entropy …

[HTML][HTML] Interacting dark energy and dark matter: observational constraints from cosmological parameters

B Wang, J Zang, CY Lin, E Abdalla, S Micheletti - Nuclear Physics B, 2007 - Elsevier
Several observational constraints are imposed on the interacting holographic model of dark
energy and dark matter. First we use the age parameter today, as given by the WMAP …