362 citations · 8.3k across the 216 of their papers we have counts for
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Greybody Factors and Hawking Spectra of Quantum-Corrected Black Holes
Moslem Shafiee, Ahmad Sheykhi
We investigate Hawking radiation of a quantum-corrected Schwarzschild black hole with vacuum polarization and conformal anomaly effects. The corrected geometry has two horizons, a…
Kaniadakis Holographic Dark Energy with Particle Horizon as IR Cutoff
A. Asvar, M. Mohammadi, A. Sheykhi
We construct a holographic dark-energy model using Kaniadakis entropy with the particle horizon as the infrared cutoff, consistently modifying both the holographic density and the…
`It from Bit': is there a second law of quantum complexity?
S. Davatolhagh, A. Sheykhi, M. H. Zarei
At a deeper level the principle of least action is interpreted as the law of least entropy increase consistent with Prigogine's principle of minimum entropy production, and the imp…
Entanglement islands and information recovery from near-extremal regular black holes
Ankit Anand, Kimet Jusufi, Amir A. Khodahami +1
We investigate the Page curve and information recovery in a near-extremal regular black hole inspired by T-duality, in which the central singularity is resolved by a minimal length…
Big-Bang Nucleosynthesis and WIMP Dark Matter Freeze-Out as Probes of Yukawa Cosmology
Ava Shahbazi Sooraki, Ahmad Sheykhi
We investigate Big-Bang Nucleosynthesis (BBN) in the context of Yukawa cosmology. We first derive the modified Friedmann equations by starting from the first law of thermodynamics…
Landauer's Principle as a Criterion for Thermodynamic Consistency in Generalized Black Hole Entropies
Fatemeh Sadeghi, Ahmad Sheykhi
Under the assumption that black hole horizon area is quantized, each Hawking evaporation step, during which the black hole loses mass and transitions to a lower area level, is inte…
From information bounds to infrared gravity: implications of Sharma-Mittal entropy
Abdelhakim Benkrane, Giuseppe Gaetano Luciano, Ahmad Sheykhi
The Sharma--Mittal (SM) entropy provides a two-parameter generalization encompassing both the Rényi and Tsallis statistical frameworks. In this work, we investigate its thermodynam…
Modified Entropy from Action Principle
A. Dehyadegari, A. Sheykhi
We propose a modified gravity theory by extending the Einstein-Hilbert action with an arbitrary function of the Ricci scalar and the Kretschmann scalar invariants. The resulting mo…
Hawking radiation from a semi-classical Schwarzschild black hole
Moslem Shafiee, Ahmad Sheykhi
This study investigates the evaporation process of a Schwarzschild black hole, incorporating quantum corrections arising from conformal anomaly and vacuum polarization. We show tha…
Slow-roll inflation in (dual) Kaniadakis cosmology
Leila Liravi, Ahmad Sheykhi
We investigate slow-roll inflation within the framework of Kaniadakis and dual Kaniadakis cosmology, where the usual entropy formalism is generalized through a deformation paramete…
Unified dark sector and Hubble-tension alleviation in scalar-vector-tensor gravity
Kimet Jusufi, Amir A. Khodahami, Ahmad Sheykhi +2
We investigate a scalar-vector-tensor theory in which matter is minimally coupled to a Jordan-frame metric , while a massive vector sector interacts with…
New Black hole Solutions in Gravity
A. Dehyadegari, A. Sheykhi
We investigate static and spherically symmetric vacuum solutions in the symmetric teleparallel modified theory of gravity. Starting from a recently proposed classif…
An Effective Framework for Entropy Modifications via Stochastic Metric Fluctuations
Amir A. Khodahami, Ahmad Sheykhi
Deviations from the area law of horizon entropy are often modeled phenomenologically through modified Friedmann equations in cosmology. In this work, we explore an effective stocha…
Hints Beyond CDM from Barrow and Tsallis Holographic Dark Energy with GO cutoff
G. G. Luciano, A. Paliathanasis, G. Leon +2
Barrow and Tsallis Holographic Dark Energy (HDE) are two recent extensions of the standard HDE framework, obtained by introducing generalized entropy corrections through the Barrow…