HEP2026: 42nd Conference on Recent Developments in High Energy Physics and Cosmology [NTUA] Jul 8 – 11, 2026

Hints for an AdS Universe from DESI

10 Jul 2026, 12:20

20m

Main Hall (Level 1) (National Technical University of Athens)

Theory

Speaker

Ioannis Gialamas (National Institute of Chemical Physics and Biophysics)

Description

In this talk, I will present recent BAO results from DESI suggesting that dark energy may be evolving, with low redshift supernova data playing an important role in this indication. I will briefly discuss equation of state parametrizations and focus on a simple quintessence model with a Higgs like potential. This approach suggests that the Universe may already be in, or could evolve into, an AdS phase, potentially leading to a future cosmological collapse.

Presentation materials

talk_HEP_Gialamas.pdf