摘要
The dark energy(DE)is the dominant component in the present Universe.Understanding its nature is ultimately important and has long been one of the key challenges in the 21st century.The recent Baryonic Acoustic Oscillation(BAO)measurements from DESI DR2 combined with PLANCK cosmic microwave background radiation(CMB)and supernovae data have marked an important milestone in DE studies.The derived constraints,either from the parameterized equation of state of DE[1]or non-parameterized analyses[2].
