5–9 Jul 2026
University of Canterbury
Pacific/Auckland timezone

Interacting Phantom Dark Energy after DESI DR2 BAO Observations: New Constraints and Tension Alleviation

6 Jul 2026, 12:10
2m
Room E8 (Rātā / Engineering Core Building, University of Canterbury)

Room E8

Rātā / Engineering Core Building, University of Canterbury

63 Creyke Road, Ilam, Christchurch 8041, New Zealand

Speaker

Zhuochao LI (the Chinese University of Hong Kong)

Description

Abstract: Dark energy and dark matter constitute the dominant components of the universe's energy density. Nevertheless, we know very little about these dark sectors. Recent observations from the Dark Energy Spectroscopic Instrument (DESI) suggest that dark energy may be dynamical. It is natural to ask: Does dark energy interact with dark matter? In this project, we investigate and constrain the Interacting Dark Energy model using recent cosmological observations, including the Cosmic Microwave Background (CMB), Baryon Acoustic Oscillations (BAO), and Large Scale Structure (LSS).

Research Area Cosmology: late universe

Author

Zhuochao LI (the Chinese University of Hong Kong)

Presentation materials