29 citations · 109 across the 8 of their papers we have counts for
8 papers
Cosmological constraints on the big bang quantum cosmology model
Yicheng Wang, Yupeng Yang, Xinyi Dai +3
The big bang quantum cosmology model introduces the trace of the Schouten tensor as a form of dynamic dark energy. Together with cold dark matter, these components form the so-…
Constraints on the primordial curvature power spectrum at small scales between and
Yupeng Yang
The primordial curvature power spectrum has been measured with high precision on large scales based on observat…
Impact of radiation from primordial black holes on the 21-cm angular-power spectrum in the dark ages
Yupeng Yang
We investigate the impact of radiation from primordial black holes (PBHs), in the mass range of and $10^{2} \lesssim M_{\rm PB…
Influences of accreting primordial black holes on the global 21 cm signal in the dark ages
Yupeng Yang
Baryonic matter can be accreted on to primordial back holes (PBHs) formed in the early Universe. The radiation from accreting PBHs is capable of altering the evolution of the inter…
Constraints on accreting primordial black holes with the global 21-cm signal
Yupeng Yang
We investigate the effect of accreting primordial black holes (PBHs) on the thermal history of the intergalactic medium (IGM), including the accretion of baryonic matter and dark m…
Constraints on primordial black holes and curvature perturbations from the global 21cm signal
Yupeng Yang
The recent observations of the global 21cm signal by EDGES and gravitational waves by LIGO/VIGO have revived interest in PBHs. Different from previous works, we investigate the inf…
Constraints on the small scale curvature perturbation using Planck-2015 data
Yupeng Yang
The particles emitted from PBHs through the Hawking radiation have interactions with the particles present in the Universe. Due to the interactions, the evolution of the intergalac…
New Constraints on Primordial Minihalo Abundance Using Cosmic Microwave Background Observations
Yupeng Yang, Xiaoyuan Huang, Xuelei Chen +1
It was proposed that the massive compact halo objects (MCHOs) would be produced during an earlier epoch of cosmology if the density perturbations are between and…