From the 1 of 5 linked papers with an AI index.
5 papers
Late-Time Cosmological Tests of a Minisuperspace Generalized-Uncertainty-Principle Deformation
G. G. L. Nashed
The paper examines how a quadratic generalized‑uncertainty‑principle deformation of the FLRW minisuperspace alters the Friedmann equation and uses late‑time observational data (cos…
Effective Constrained Scalar--Gauss--Bonnet Inflation Motivated by Gravity
G. G. L. Nashed, Sudan Hansraj, Amare Abebe
We develop an effective framework for inflation in a constrained scalar--Gauss--Bonnet theory motivated by a restricted sector of gravity. Using unified parametr…
Rotating traversable wormholes and particle dynamics in gravity
G. G. L. Nashed, Waleed El Hanafy, Amare Abebe +2
Traversable wormholes are among the most interesting solutions of gravitational theories, but within General Relativity they generally require exotic matter violating the null ener…
Photon Sphere and Shadow of a Perturbative Black Hole in Gravity
G. G. L. Nashed
We investigate the impact of higher-curvature corrections on black-hole observables within a perturbative gravity framework. Working in a static, spherically symmetric sp…
Light Deflection and Greybody Bound Around a BTZ-ModMax Black Hole in Plasma Medium
Ritesh Pandey, Shubham Kala, Amare Abebe +2
We study the deflection of light in a homogeneous plasma medium around a BTZ-ModMax black hole, focusing on the effects of the ModMax nonlinear electrodynamics parameter and the co…