19 citations · 26 across the 10 of their papers we have counts for
10 papers
Inverse-k Primordial Oscillations from a Symbolic Regression Search
Ze-Yu Peng, Qing-Yu Lan, Yun-Song Piao
Oscillatory features in the primordial power spectrum, potential signatures of new physics in the early universe, are usually searched for using fixed templates. In this work, we p…
Single field slow-roll inflation with step uplift to
Hao-Shi Yuan, Ze-Yu Peng, Yun-Song Piao
The early dark energy resolution of Hubble tension seems to be suggesting a scale-invariant Harrison-Zeldovich spectrum of primordial scalar perturbation, i.e. ($|n_s-1|\si…
The environmental dependence of mid-IR luminous dusty Supernovae
Lin Xiao, Zeyue Peng, Lluis Galbany +10
Using the Spitzer and WISE images, we discovered 42 mid-IR luminous dusty supernovae with local integral-field spectroscopy data. The observed mid-IR emission indicates the presenc…
DeepInflation: an AI agent for research and model discovery of inflation
Ze-Yu Peng, Hao-Shi Yuan, Qi Lai +4
We present DeepInflation, an AI agent designed for research and model discovery in inflationary cosmology. Built upon a multi-agent architecture, DeepInflation integrates Large Lan…
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…
Tightening constraints on primordial oscillations with latest ACT and SPT data
Ze-Yu Peng, Yun-Song Piao
The oscillation feature in primordial power spectrum (PPS), a fingerprint of not only a wide class of models of inflation but new physics, is of significant theoretical interest, a…
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…
Dark energy and lensing anomaly in Planck CMB data
Ze-Yu Peng, Yun-Song Piao
In this paper, we investigate the impact of the lensing anomaly in Planck cosmic microwave background (CMB) data on the nature of dark energy (DE). We constrain the state equation…
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…
Testing the scaling relation with Planck-independent CMB data
Ze-Yu Peng, Yun-Song Piao
In early dark energy (EDE) resolution of Hubble tension, the spectral index of primordial scalar perturbation follows a scaling relation , w…