33 citations · 33 across the 10 of their papers we have counts for
15 papers
Elementary-Symmetric Ricci Gravity: Metric Formulation
Xingpao Suo, Dianxu Ma, Yuqiong Shan +1
We investigate a four-dimensional metric theory of gravity whose Lagrangian is a linear combination of the elementary symmetric polynomials of the Ricci tensor. We derive the field…
Shadow signatures and near-horizon energy accumulation in coherent quantum sine-integral black holes
A. Errehymy, Y. Khedif, M. Daoud +4
Quantum modifications of black hole spacetimes can lead to observable departures from the predictions of classical general relativity, particularly in the strong-gravity regime nea…
Coherent quantum state corrections in RN--black holes: Photon dynamics, shadow casts, and energy backreaction
A. Errehymy, Y. Khedif, M. Daoud +4
We revisit the Reissner-Nordström (RN) geometry within the coherent quantum black hole framework, introducing a version that remains well-behaved at short distances while preservin…
Dynamical Stability and Quasinormal Modes of Casimir Wormholes in dRGT Massive Gravity
Piyali Bhar, Dhruba Jyoti Gogoi, A. Errehymy
This paper investigates static, spherically symmetric traversable wormholes supported by Casimir energy within de Rham-Gabadadze-Tolley (dRGT) massive gravity. By deriving the exac…
Joint Constraints on Quantum Oppenheimer--Snyder Black Holes from High-Frequency Quasi-Periodic Oscillations in X-ray Binary Systems and the S2 Star Orbit
A. Errehymy, Y. Khedif, M. Daoud +4
We study a quantum-corrected version of the Oppenheimer--Snyder (OS) spacetime in which classical collapse is modified by a single effective-parameter \(α\), representing small-qua…
Observational Constraints on Kazakov-Solodukhin Quantum-Deformed Black Holes from M87 and Sgr A Shadows
A. Errehymy, Y. Khedif, M. Daoud +4
We explore the Kazakov-Solodukhin quantum-deformed black hole spacetime, characterized by a single deformation parameter \( η\) that encodes quantum corrections to the classical Sc…
Slowly rotating traversable wormholes supported by radially varying string-fluid matter: From regular geometries to photon trajectories
A. Errehymy, B. Turimov, M. A. Khan +3
This work investigates slowly rotating traversable wormholes supported by string fluids whose properties vary with distance from the throat. This radial variation allows the matter…
Dymnikova-Schwinger quantum-corrected slowly rotating wormholes: Photon and spinning particle dynamics
A. Errehymy, Y. Khedif, M. Daoud +3
This work studies light propagation near slowly rotating traversable wormholes supported by a quantum-inspired matter source. The model is based on the Dymnikova density profile, v…
Event Horizon Telescope Observational Constraints on Dymnikova-Type Non-Singular Black Holes in Higher Dimensions
A. Errehymy, Y. Khedif, M. Daoud +3
Black holes are among the most compelling predictions of general relativity (GR) and are now strongly supported by observations from gravitational-wave detectors and the Event Hori…
Quantum corrections to Dymnikova-Schwinger black holes in Einstein-Gauss-Bonnet gravity
A. Errehymy, Y. Khedif, M. Daoud +3
This work investigates black holes within a modified framework of gravity that incorporates quantum-inspired corrections and a fundamental minimal length scale. By integrating Eins…
Role of cosmic voids and their matter properties in shaping wormhole geometry in generalized geometry-matter coupling gravity
A. Errehymy, S. Hansraj
Cosmic voids are increasingly recognized as a promising tool for cosmological exploration. Their distribution and density profiles are highly responsive to alterations in gravitati…
Dehnen-type dark matter wormholes in the action
A. Errehymy, O. Donmez, B. Turimov +3
We are exploring the possibility of traversable wormholes existing in a more realistic context. Specifically, we are looking at scenarios that don't rely on exotic factors, like ha…
Possible wormholes in generalized geometry-matter coupling gravity induced by the Dekel-Zhao dark matter profile
A. Errehymy, O. Donmez, A. Syzdykova +4
In the late 1980s, Morris and Thorne led in theoretical physics by creating solutions to wormholes and formulating the crucial requirements for safe traversability of wormholes. Th…
Constraints on bulk viscosity in gravity from H(z)/Pantheon+ data
M. Koussour, Abdelghani Errehymy, O. Donmez +4
In this study, we investigate the role of bulk viscosity in gravity in explaining late-time cosmic acceleration. This model, an extension of symmetric teleparallel gravity…
Exploring accelerated expansion in the universe: A study of gravity with parameterized EoS and cosmological constraints
M. Koussour, N. Myrzakulov, J. Rayimbaev +2
The study conducted in this research paper utilizes the gravity, where represents non-metricity and represents the trace of the energy-momentum tensor, to investig…