P. Brax

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gr-qc2025

Bounds on screened dark energy from near-Earth space-based measurements

Fabiano Feleppa, Welmoed Marit de Graaf, Philippe Brax +1

We test screened dark energy with near-Earth, space-based measurements. In a post-Newtonian framework, we compute leading corrections to geodetic precession (Gravity Probe B), LAGE…

gr-qc2024

$R^{2}$ effectively from Inflation to Dark Energy

P. Brax, P. Vanhove

We consider the single-parameter $R + c R^{2}$ gravitational action and use constraints from astrophysics and the laboratory to derive a natural relation between th…

Bounds on screened dark energy from near-Earth space-based measurements

R2 effectively from Inflation to Dark Energy

$R^{2}$ effectively from Inflation to Dark Energy