3 papers
astro-ph.CO2026
Mass-Varying Neutrinos from an Inverse Symmetron
Mainak Baidya, Ãyvind Christiansen, Vitor da Fonseca +2
Neutrinos enter cosmology in different ways and are constrained by distinct observational probes across different epochs: as a relativistic species at high redshift, as a massive b…
astro-ph.CO2025
Gravitational waves from dark domain walls
Ãyvind Christiansen, Julian Adamek, Farbod Hassani +1
For most of cosmic history, the evolution of our Universe has been governed by the physics of a 'dark sector', consisting of dark matter and dark energy, whose properties are only…
astro-ph.CO2025
Environmental cosmic acceleration from a phase transition in the dark sector
Ãyvind Christiansen, Farbod Hassani, David F. Mota
A new degravitation mechanism within the framework of scalar tensor gravity is postulated and included by prescription. The mechanism eliminates all constant contributions from the…