Different faces of generalized holographic dark energy
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 …
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
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 …
holographic hypothesis, a new holographic dark energy (HDE) model is proposed …
[HTML][HTML] Generalized entropy formalism and a new holographic dark energy model
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 …
to study various cosmological and gravitational setups. Here, using a special type of …
Thermodynamic approach to holographic dark energy and the Rényi entropy
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 …
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
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 …
gravity to compare the two gravitational theories in a general way. Our conclusions are …
Generalized entropies and corresponding holographic dark energy models
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 …
black holes is achieved, a result in full agreement with a recent study (Mejrhit and Ennadifi in …
Note on Tsallis holographic dark energy
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 …
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) …
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
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 …
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
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 …
horizon as the IR cutoff by assuming Kaniadakis and generalized Tsallis entropies in the …