Dark matter signatures of black holes with yukawa potential

AA Araújo Filho, K Jusufi, B Cuadros-Melgar… - Physics of the Dark …, 2024 - Elsevier
This study uses a nonsingular Yukawa-modified potential to obtain a static and spherically
symmetric black hole solution with a cosmological constant. Such Yukawa-like corrections …

Testing Yukawa cosmology at the Milky Way and M31 galactic scales

R D'Agostino, K Jusufi, S Capozziello - The European Physical Journal C, 2024 - Springer
We address the galaxy rotation curves through the Yukawa gravitational potential emerging
as a correction of the Newtonian potential in extended theories of gravity. On the one hand …

[HTML][HTML] Observational constraints on Yukawa cosmology and connection with black hole shadows

E Gonzalez, K Jusufi, G Leon, EN Saridakis - Physics of the Dark Universe, 2023 - Elsevier
We confront Yukawa modified cosmology, proposed in Jusufi et al.[arxiv: 2304.11492], with
data from Supernovae Type Ia (SNe Ia) and Hubble parameter (OHD) observations. Yukawa …

Graviton mass due to dark energy as a superconducting medium-theoretical and phenomenological aspects

N Inan, AF Ali, K Jusufi, A Yasser - Journal of Cosmology and …, 2024 - iopscience.iop.org
It is well known that the cosmological constant term in the Einstein field equations can be
interpreted as a stress tensor for dark energy. This stress tensor is formally analogous to an …

Modified gravity/entropic gravity correspondence due to graviton mass

K Jusufi, AF Ali, A Yasser, N Inan, AY Ellithi - Annals of Physics, 2024 - Elsevier
Some time ago, it has been suggested that gravitons can acquire mass in the process of
spontaneous symmetry breaking of diffeomorphisms through the condensation of scalar …

Apparent dark matter inspired by the Einstein equation of state

K Jusufi, A Sheykhi - Europhysics Letters, 2024 - iopscience.iop.org
The purpose of this article is twofold. First, by means of Padmanabhan's proposal on the
emergence nature of gravity, we recover the ΛCDM model and the effect of the dark matter in …

Dark matter effects of a black hole with nonsingular Yukawa-modified potential in Einstein-Gauss-Bonnet Gravity

Y Sekhmani, R Myrzakulov, AZ Kaczmarek… - arxiv preprint arxiv …, 2024 - arxiv.org
This paper investigates the contribution of the nonsingular Yukawa-modified potential in the
context of four-dimensional Einstein-Gauss-Bonnet (EGB) gravity modeling by a static and …

Missing matter in galaxies as a neutrino mixing effect

A Capolupo, S Capozziello, G Pisacane… - arxiv preprint arxiv …, 2024 - arxiv.org
We show that, in the framework of quantum field theory in curved spacetime, the
semiclassical energy-momentum tensor of the neutrino flavor vacuum fulfills the equation of …

Dark universe inspired by the Kaluza-Klein gravity

K Jusufi, GG Luciano, A Sheykhi, D Samart - arxiv preprint arxiv …, 2024 - arxiv.org
We explore the potential implications of Kaluza-Klein (KK) gravity in unifying the dark sector
of the Universe. Through dimensional reduction in KK gravity, the 5D spacetime framework …

Gravitational Waves beyond the Linear Approximation and Gravitational Wave Reflection

V Atanasov, A Saxena - arxiv preprint arxiv:2502.01687, 2025 - arxiv.org
We derive a relativistic field equation for the trace of the metric perturbation beyond the weak
field approximation to the Einstein field equations. The dynamics is governed by a massive …