A larger value for $H_0$ by an evolving gravitational constant

Matteo Braglia, Mario Ballardini, William T. Emond +4

We provide further evidence that a massless cosmological scalar field with a non-minimal coupling to the Ricci curvature of the type $M_{\mathrm{pl}}^2(1+\xi {\sigma }^n/M_{\mathrm{pl}}^n)$ alleviates…