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gr-qc2026
Natural modification of quantum uncertainty, modified gravity, and cosmology
Christian G. Boehmer, Eissa Al-Nasrallah
A common approach in physics and mathematics is to extend and modify theories and frameworks by considering what is often described as a `natural' extension or modification by incl…
gr-qc2026
Non-minimal fluid Lagrangian couplings
Christian G. Boehmer, Erik Jensko, Eissa Al-Nasrallah
Gravitational models with non-minimal couplings involving functions of the matter Lagrangian and curvature have become popular in recent decades. By coupling the matter Lagrangian…