Nouveaux résultats seront présentés pour l’énergie noire dans l’Univers depuis ses phases quantiques planckienne et trans-planckienne avant l’inflation jusqu’à la phase actuelle en accord avec les observations. Les niveaux quantiques discrets de l’énergie du vide cosmologique seront présen-tés permettant de caracteriser et suivre les différentes phases jusqu’au continuum classique des...
Generalized Dark Matter in one of its simplest form is an extension to the dark matter paradigm allowing homogeneous and perturbed pressures through a non vanishing equation of state parameter with a sound speed parameter different from zero. Yet these deviations from LCDM model could translate in large changes in the determination of geometrical cosmological observables as well as those of...
We compare the maximal abundance of massive systems predicted in different dynamical dark energy (DDE) models at high redshifts $z \approx 4-7$ with the measured abundance of the most massive galaxies observed to be already in place at such redshifts. The aim is to derive constraints for the evolution of the
dark energy equation of state parameter $w$ which are complementary to existing...
