output
19992026
most citedRegular black holes with a nonlinear electrodynamics source

401 citations

researchers with a paper here
collaborating institutions

184 papers

gr-qc2026

Evolution of matter perturbations in the context of cosmic slowing down

D. Koh Cuende, G. Panotopoulos

We investigate dynamical, time-evolving dark-energy models exhibiting phantom behaviour within Einstein gravity by analysing the evolution of matter perturbations. In particular, w…

gr-qc2026

On Modeling Anisotropic Quark Stars: The Role of Anisotropy in Radial Oscillation Spectra

G. Panotopoulos

We model the compact object Cen X-3, which is considered to be a good strange quark star candidate of known mass and radius, incorporating a negative anisotropic factor, and we com…

gr-qc2026

Slowly rotating condensate dark stars beyond the mean-field approximation

Grigoris Panotopoulos, Ángel Rincón, Ilidio Lopes

We investigate rotational properties and universal relations of slowly rotating Bose-Einstein condensate dark stars in the context of General Relativity, both at the mean-field lev…

gr-qc2026

Radial oscillations of quark stars in light of current astrophysical constraints: A comparative study

G. Panotopoulos, A. Rincon, I. Lopes

We investigate the structural and oscillatory properties of isotropic strange quark stars within General Relativity, focusing on three physically motivated equations of state: the…

gr-qc2026★ 2 cited

Black hole physics within gravity: Quasi-normal spectra and greybody factors

Ángel Rincón, Grigoris Panotopoulos

We investigate several astrophysical motivated properties of a four-dimensional black hole solution in the framework of gravity. The model is characterized by a single addit…

quant-ph2026

Quantum correlations and coherence in a two-qubit anisotropic under magnetic field

Ahmed Jellal, Pablo Díaz, David Laroze

We study thermal quantum correlations and coherence in Heisenberg model with anisotropic interactions under a uniform magnetic field . Using concurrence , local quantu…