3 papers
gr-qc2026
Frame invariant diffusive formulation of scalar-tensor gravity
Laur Järv, Sotirios Karamitsos
Thermodynamics provides a useful interpretation of scalar-tensor gravity, in which the effective imperfect fluid admitted by the nonminimal coupling features a temperature that is…
gr-qc2025
Friedmann cosmology with hyperfluids of constant equation of state
Ilaria Andrei, Damianos Iosifidis, Laur Järv +1
We discuss some aspects of cosmology in metric-affine theories of gravity where metric and affine connection are independent variables. Such constructions, apart from the usual ene…
astro-ph.CO2025
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…