3 papers
gr-qc2026
Running Vacuum in the expanding Universe: a unified QFT paradigm for Inflation and Dark Energy
Joan Solà Peracaula
The concordance CDM model, based on a rigid -term for the entire cosmic history, has been in crisis for a long time. In our expanding Universe, an evolving with the expan…
gr-qc2026
Towards a unified quantum field theory of dark energy and inflation: unstable de Sitter vacuum and running vacuum
Joan Solà Peracaula, Àlex González-Fuentes, Cristian Moreno-Pulido
Inflation is a necessary cosmic mechanism to cure basic inconsistencies of the standard model of cosmology. These problems are usually `fixed' by postulating the existence of a sca…
astro-ph.CO2024
Phantom matter: a challenging solution to the cosmological tensions
Adria Gomez-Valent, Joan Sola Peracaula
The idea of composite dark energy (DE) is quite natural since on general grounds we expect that the vacuum energy density (associated with the cosmological term ) may appear in…