8 citations · 23 across the 12 of their papers we have counts for
13 papers
Topological Integer-Winding Dark Matter with a Dark Higgs Triplet: Stability from
Ahmed Ali
We propose a dark matter model in which the symmetry-breaking pattern SU(3)_dark -> SO(3)_dark x Z_2 produces absolutely stable point-like topological defects classified by pi_2(SU…
Rainbow McVittie Horizons in an Expanding Universe
Amani Ashour, Ahmed Farag Ali
We derive the Friedmann dynamics and apparent-horizon thermodynamics of a spatially flat McVittie spacetime in Gravity's Rainbow and construct a consistent non-accreting perfect-fl…
Spectral Admissibility of Real Observers in Euclidean de Sitter Gravity
Ricardo Espíndola, Ahmed Farag Ali
The Euclidean de Sitter path integral contains the familiar phase associated with conformal negative modes. Maldacena's construction shows that a suitably included real observer ca…
When do real observers resolve de Sitter's imaginary problem?
Ahmed Farag Ali
The universal phase $\rev{\ii}^{D+2}$ of the Euclidean de Sitter path integral obstructs a straightforward state-counting interpretation of the Gibbons--Hawking entropy. Building o…
Mass Without Mass from a Berry--Shifted SU(3) Holonomy Rotor
Ahmed Farag Ali
We identify a local, gauge-invariant mechanism that generates a finite spectral scale in pure SU(3) Yang--Mills theory on a punctured three-ball. Fixing a center sec…
Relational de Sitter State Counting with an SU(3) Clock
Ahmed Farag Ali
Motivated by Maldacena's observer-centric formulation of de~Sitter physics \cite{Maldacena:2024spf}, we develop an observer-dependent state-counting framework in Euclidean de~Sitte…
Quantum Spacetime Imprints: The 24-Cell, Standard Model Symmetry and Its Flavor Mixing
Ahmed Farag Ali
In our previous work \cite{FaragAli:2024jpo} we outlined an exploratory framework in which the 24-cell acts both as the quantum of spacetime and as a geometric representation of el…
GUP/BEB correspondence
Ahmed Farag Ali
We develop a fully expectation--value formulation of the GUP/Bekenstein--bound (BEB) correspondence, building on \cite{Ali:2024tbd,Ali:2022ckm,Ali:2022ulp}. Using Dirac's commutato…
Deriving the Cosmological Constant and Nature's Constants from SU(3) Confinement Volume
Malak Ali, Ahmed Farag Ali
We explore the interplay between three well-established physical principles: QCD confinement, the Third Law of Thermodynamics, and holography, and examine how their combined implic…
At the Edge of Uncertainty: Decoding the Cosmological Constant value with Bose-Einstein Distribution
Ahmed Farag Ali, Nader Inan
We propose that the observed value of the cosmological constant may be explained by a fundamental uncertainty in the spacetime metric, which arises when combining the principle tha…
Modified gravity/entropic gravity correspondence due to graviton mass
Kimet Jusufi, Ahmed Farag Ali, Abdelrahman Yasser +2
Some time ago, it has been suggested that gravitons can acquire mass in the process of spontaneous symmetry breaking of diffeomorphisms through the condensation of scalar fields [C…
Graviton mass due to dark energy as a superconducting medium: theoretical and phenomenological aspects
Nader Inan, Ahmed Farag Ali, Kimet Jusufi +1
It is well known that the cosmological constant term in the Einstein field equations can be interpreted as a stress tensor for dark energy. This stress tensor is formally analogous…
The Mass Gap of the Space-time and its Shape
Ahmed Farag Ali
Snyder's quantum space-time which is Lorentz invariant is investigated. It is found that the quanta of space-time have a positive mass that is interpreted as a positive real mass g…