collaborators

9 papers

gr-qc2026

Observable Optical Signatures, Particle Dynamics and Epicyclic Frequencies of Mod(A)Max Black Holes

Faizuddin Ahmed, Ahmad Al-Badawi, Edilberto O. Silva

In this work, we investigate the observable optical signatures of the Mod(A)Max black hole spacetime. We analyze key optical features, including the photon sphere, black hole shado…

hep-th2025

Thermodynamic geometry of charged AdS black holes with a string cloud in Lorentz-violating Einstein-Kalb-Ramond gravity

Faizuddin Ahmed, Edilberto O. Silva

We investigate the thermodynamic microstructure of electrically charged AdS black holes in Einstein-Kalb-Ramond bumblebee gravity in the presence of a spherically symmetric cloud o…

hep-th2025

Thermodynamics and - Criticality of Charged AdS Black Holes with a Cloud of Strings in Kalb-Ramond Gravity

Faizuddin Ahmed, Edilberto O. Silva

We investigate the extended phase-space thermodynamics and -- criticality of electrically charged anti-de Sitter (AdS) black holes in Kalb--Ramond bumblebee gravity in the pr…

gr-qc2025

Letelier-AdS Black Hole Surrounded by a Perfect Fluid Dark Matter in the presence of Quintessence

Faizuddin Ahmed, Edilberto O. Silva

This study investigates a Schwarzschild-anti de Sitter black hole coupled to a cloud of strings featuring only the electric-like component of the string bivector, embedded in a per…

cond-mat.mes-hall2025

Single-Scale Magnetoelastic Landau Quantization: Thermodynamics, Quantum Oscillations, and Metrology

Denise Assafrão, Faizuddin Ahmed, Edilberto O. Silva

We develop a unified, single-scale description of thermodynamics and quantum oscillations in electronic systems with a uniform areal density of screw dislocations under a uniform m…

gr-qc2025

Schwarzschild Black Hole Coupled with a Cloud of Strings Immersed in King Dark Matter Halo

Faizuddin Ahmed, Edilberto O. Silva

In this paper, we examine the geodesic and thermodynamic properties of a Schwarzschild black hole with a cloud of strings (known as the Letelier black hole) immersed in a King dark…