28 citations · 52 across the 13 of their papers we have counts for
13 papers
Dark Energy in the DESI Era: A Brief Review of Evidence, Beyond-CDM Interpretations, and Tensions
Tian-Nuo Li, Guo-Hong Du, Hao Wang +3
Recent baryon acoustic oscillation measurements from DESI provide important new clues for reassessing whether the standard CDM model offers a sufficient description of the late-…
Imprint of swampland-inspired coupled early dark energy
Hao Wang, Yun-Song Piao
Inspired by the Swampland Distance Conjecture, we investigate the cosmological implications of a fractional coupling between dark matter (DM) and early dark energy (EDE) in light o…
Resolving the Hubble Tension in the Early Dark Energy Framework with JWST and DESI Data
Guo-Hong Du, Tian-Nuo Li, Lu Yin +4
In the JWST and DESI era, the JWST high-redshift galaxy observations and DESI baryon acoustic oscillation (BAO) measurements severely challenge the standard CDM model, while the…
Impact of a negative cosmological constant on the reconstruction of dark energy in light of DESI BAO data
Hao Wang, Yun-Song Piao
An anti-de Sitter vacuum, corresponding to a negative cosmological constant (NCC), might coexist with one evolving positive dark energy component at low redshift and is hinted by t…
Dark energy after pre-recombination early dark energy in light of DESI DR2 and the latest ACT and SPT data
Hao Wang, Yun-Song Piao
It has been noted that with the pre-recombination early dark energy (EDE) resolution of Hubble tension, the preference of recent datasets for the evolving dark energy (DE) can be s…
Testing in light of the latest ACT and SPT data
Ze-Yu Peng, Jun-Qian Jiang, Hao Wang +1
It is commonly recognized that the primordial scalar spectral index is approximately , depending on the dataset. However, this view is being completely altered by…
Can the universe experience an AdS landscape since matter-radiation equality?
Hao Wang, Yun-Song Piao
Though an anti-de Sitter (AdS) vacuum, corresponding to a negative cosmological constant (NCC), can be not responsible for the acceleration of current universe, it might coexist wi…
Hint of after DESI DR2 ?
Hao Wang, Ze-Yu Peng, Yun-Song Piao
In the report by BICEP/Keck collaborations, the tensor-to-scalar ratio is (95\% C.L.). However, recent datasets have preferred the evolving dark energy, which thus…
Towards primordial gravitational waves and in light of BICEP/Keck, DESI BAO and Hubble tension
Hao Wang, Gen Ye, Jun-Qian Jiang +1
Recent observational data seem to show a evidence for an evolving dark energy (DE) against the cosmological constant, so the standard CDM model. In this paper, we p…
Impact of evolving dark energy on the search for primordial gravitational waves
Hao Wang, Gen Ye, Yun-Song Piao
Recent data seem to suggest a preference for the evolving dark energy (DE). However, if the case is actually so, and not caused by unknown systematics in data, it might impact our…
Can recent DESI BAO measurements accommodate a negative cosmological constant?
Hao Wang, Ze-Yu Peng, Yun-Song Piao
Anti-de Sitter vacuum, which correspond to a negative cosmological constant (CC), is theoretically important and well-motivated. However, whether it exists in reality or not has al…
Dark energy in light of recent DESI BAO and Hubble tension
Hao Wang, Yun-Song Piao
Recently, Dark Energy Spectroscopic Instrument (DESI) collaboration based on their first year data has reported a evidence for an evolving dark energy (DE) against the…
Trapped early dark energy
Hao Wang, Yun-Song Piao
As a prospective resolution of the Hubble tension, early dark energy (EDE) suffers from the coincidence problem, why EDE is active just at matter-radiation equality (equivalently w…