From the 2 of 63 papers with an AI index.
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- Damghan UniversityIR16 papers
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51 papers · 1 filter
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…
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…
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…
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…
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…
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…