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most citedIs Dark Energy Dynamical in the DESI Era? A Critical Review

27 citations

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gr-qc2026

Observational Constraints on Emergent Fractional Fractal Cosmology

Raheleh Jalalzadeh, Hooman Moradpour, Shahram Jalalzadeh

We constrain the Emergent Fractional Fractal (EFF) cosmological model through a joint likelihood analysis of recent cosmological observations at the background and perturbation lev…

gr-qc2026

Accelerating electrically charged ModMax black hole solutions in gravity

B. Eslam Panah, N. Heidari, A. Rincón

Using the metric in the context of gravity coupled with the ModMax nonlinear electromagnetic field (the ModMax theory), we derive an exact black hole solution in…

gr-qc2026

Optical and Thermodynamic Signatures of Lorentz Symmetry Breaking in Bumblebee AdS Black Holes

Behzad Eslam Panah, Abdullah Guvendi, Semra Gurtas Dogan +1

We investigate the impact of spontaneous Lorentz symmetry breaking on scalar wave propagation, null geodesics, and thermodynamic behavior of four-dimensional asymptotically AdS bla…

gr-qc2026

Gauge-covariant Raychaudhuri dynamics for spin-nondegenerate Lorentz-violating congruences

A. A. Araújo Filho, A. F. Santos, J. A. A. S. Reis +2

The paper derives a gauge‑covariant form of the Raychaudhuri equation for charged particle congruences with Lorentz‑violating dispersion relations, showing how electromagnetic fiel…

gr-qc2026

A winding number analysis of Schwarzschild black hole stability in light of Planck-scale modified kinematics

Mohsen Khodadi, Nosratolla Jafari, Shahin Mamedov

Determining whether Planck-scale effects can stabilize black holes addresses fundamental questions about black hole evaporation and quantum gravity consistency. Here, we analyze th…

gr-qc2026

Systematic Light Propagation Bias from the Heliosphere and Its Impact on the Hubble Tension

Behnam Pourhassan, İzzet Sakallı, Sudhaker Upadhyay +1

The Hubble tension (HT) represents one of the most significant discrepancies in modern cosmology, with local distance measurements yielding km/s/Mpc while cosm…