Different faces of generalized holographic dark energy

S Nojiri, SD Odintsov, T Paul - Symmetry, 2021 - mdpi.com
In the formalism of generalized holographic dark energy (HDE), the holographic cut-off is
generalized to depend upon L IR= L IR L p, L˙ p, L¨ p,⋯, L f, L˙ f,⋯, a with L p and L f being …

[HTML][HTML] Tsallis holographic dark energy

M Tavayef, A Sheykhi, K Bamba, H Moradpour - Physics Letters B, 2018 - Elsevier
Employing the modified entropy–area relation suggested by Tsallis and Cirto [1], and the
holographic hypothesis, a new holographic dark energy (HDE) model is proposed …

[HTML][HTML] Generalized entropy formalism and a new holographic dark energy model

AS Jahromi, SA Moosavi, H Moradpour, JPM Graça… - Physics Letters B, 2018 - Elsevier
Recently, the Rényi and Tsallis generalized entropies have extensively been used in order
to study various cosmological and gravitational setups. Here, using a special type of …

Thermodynamic approach to holographic dark energy and the Rényi entropy

H Moradpour, SA Moosavi, IP Lobo, JPM Graça… - The European Physical …, 2018 - Springer
Using the first law of thermodynamics, we propose a relation between the system entropy (S)
and its IR (L) and UV (Λ Λ) cutoffs. In addition, applying this relation to the apparent horizon …

Einstein and Rastall theories of gravitation in comparison

F Darabi, H Moradpour, I Licata, Y Heydarzade… - The European Physical …, 2018 - Springer
We profit by a recent paper of Visser claiming that Rastall gravity is equivalent to Einstein
gravity to compare the two gravitational theories in a general way. Our conclusions are …

Generalized entropies and corresponding holographic dark energy models

H Moradpour, AH Ziaie, MK Zangeneh - The European Physical Journal C, 2020 - Springer
Using Tsallis statistics and its relation with Boltzmann entropy, the Tsallis entropy content of
black holes is achieved, a result in full agreement with a recent study (Mejrhit and Ennadifi in …

Note on Tsallis holographic dark energy

MA Zadeh, A Sheykhi, H Moradpour… - The European Physical …, 2018 - Springer
We explore the effects of considering various infrared (IR) cutoffs, including the particle
horizon, the Ricci horizon and the Granda–Oliveros (GO) cutoffs, on the properties of Tsallis …

Impact of Rastall Gravity on Mass, Radius, and Sound Speed of the Pulsar PSR J0740+ 6620

W El Hanafy - The Astrophysical Journal, 2022 - iopscience.iop.org
Millisecond pulsars are perfect laboratories to test possible matter–geometry coupling and
its physical implications in light of recent Neutron Star Interior Composition Explorer (NICER) …

Tsallis, Renyi and Sharma–Mittal holographic dark energy models in DGP brane-world

A Iqbal, A Jawad - Physics of the Dark Universe, 2019 - Elsevier
Newly proposed holographic dark energy models such as Tsallis, Renyi and Sharma–Mittal
are being studied in order to evaluate the accelerated expansion of the universe. For this …

Cosmic consequences of Kaniadakis and generalized Tsallis holographic dark energy models in the fractal universe

A Jawad, AM Sultan - Advances in High Energy Physics, 2021 - Wiley Online Library
We investigate the recently proposed holographic dark energy models with the apparent
horizon as the IR cutoff by assuming Kaniadakis and generalized Tsallis entropies in the …