3 papers
gr-qc2025
Jeans analysis in modified gravity: A general formulation
Ryan Khaled, Kamel Ourabah
We study the Jeans instability of a self-gravitating fluid in the context of alternative gravitational theories. Our formulation accommodates arbitrary corrections to the Newtonian…
cond-mat.stat-mech2024
Reaction Rates in Quasiequilibrium States
Kamel Ourabah
Non-Maxwellian distributions are commonly observed across a wide range of systems and scales. While direct observations provide the strongest evidence for these distributions, they…
quant-ph2022
On the collective properties of quantum media
Kamel Ourabah
We discuss the hydrodynamic representation of a wide class of quantum media exhibiting similar elementary excitations and dispersion properties. The representation covers quantum s…