An exponential equation of state of dark energy in the light of 2018 CMB Planck data

MN Castillo-Santos, A Hernández-Almada… - Physics of the Dark …, 2023 - Elsevier
The dynamics of the Universe is analyzed using an exponential function for the dark energy
equation of state, known as Gong-Zhang parameterization. The phase space of the free …

The paradigm of quantum cosmology through Dunkl fractional Laplacian operators and fractal dimensions

RA El-Nabulsi, W Anukool - Chaos, Solitons & Fractals, 2023 - Elsevier
The semi-classical regime of fractional quantum cosmology has been discussed based on
the Wheeler-DeWitt equation and ADM-Hamiltonian formalism. Fractionality has been …

Phenomenological emergent dark energy in the light of DESI Data Release 1

A Hernández-Almada, ML Mendoza-Martínez… - Physics of the Dark …, 2024 - Elsevier
This manuscript revisits the phenomenological emergent dark energy model (PEDE) by
confronting it with recent cosmological data from early and late times. In particular we …

[HTML][HTML] Dark Universe phenomenology from Yukawa potential?

K Jusufi, G Leon, AD Millano - Physics of the Dark Universe, 2023 - Elsevier
We argue that the effect of cold dark matter in the cosmological setup can be explained by
the coupling between the baryonic matter particles in terms of the long-range force having a …

Inflation and fractional quantum cosmology

SMM Rasouli, EW de Oliveira Costa, P Moniz… - Fractal and …, 2022 - mdpi.com
The Wheeler–DeWitt equation for a flat and compact Friedmann–Lemaître–Robertson–
Walker cosmology at the pre-inflation epoch is studied in the contexts of the standard and …

Revisiting fractional cosmology

B Micolta-Riascos, AD Millano, G Leon, C Erices… - Fractal and …, 2023 - mdpi.com
Recently, the research community has been exploring fractional calculus to address
problems related to cosmology; in this approach, the gravitational action integral is altered …

Dark matter in fractional gravity. I. Astrophysical tests on galactic scales

F Benetti, A Lapi, G Gandolfi, P Salucci… - The Astrophysical …, 2023 - iopscience.iop.org
We explore the possibility that the dark matter (DM) component in galaxies may originate
fractional gravity. In such a framework, the standard law of inertia continues to hold, but the …

Exact solutions and cosmological constraints in fractional cosmology

E González, G Leon, G Fernandez-Anaya - Fractal and Fractional, 2023 - mdpi.com
This paper investigates exact solutions of cosmological interest in fractional cosmology.
Given μ, the order of Caputo's fractional derivative, and w, the matter equation of state, we …

Dark matter in fractional gravity II: tests in galaxy clusters

F Benetti, A Lapi, G Gandolfi, BS Haridasu, L Danese - Universe, 2023 - mdpi.com
Recently, in Benetti et al.(Astrophys. J. 2023, 949, 65), we suggested that the dark matter
(DM) component in galaxies may originate fractional gravity. In such a framework, the DM …

Quantum fractionary cosmology: K-essence theory

J Socorro, JJ Rosales - Universe, 2023 - mdpi.com
Using a particular form of the quantum K-essence scalar field, we show that in the quantum
formalism, a fractional differential equation in the scalar field variable, for some epochs in …