25 citations · 56 across the 14 of their papers we have counts for
5 papers · 1 filter
Long-term 3+1 simulations of primordial black hole formation during radiation domination
Zhuan Ning, Rong-Gen Cai, Shao-Jiang Wang +1
We develop an efficient three-dimensional numerical-relativity framework for primordial black-hole (PBH) formation from superhorizon curvature perturbations in a radiation-dominate…
Learning Boson Star Solution Families with Physics-Informed Neural Networks
Ao Liu, Chen-Hao Hao, Cuihong Wen +2
Computing boson star families traditionally requires repeated solution of nonlinear eigenvalue boundary-value problems and careful numerical continuation through turning points. We…
Primordial black hole formation in bulk-viscous cosmology
Zi-Yan Yuwen, Cristian Joana, Shao-Jiang Wang +1
We investigate primordial black hole (PBH) formation in a cosmological background with bulk viscosity. Using numerical simulations, we determine the collapse threshold and the resu…
Cosmological intercept tension
Jia-Qi Wang, Shao-Jiang Wang
The long-standing tension in the Hubble constant has motivated extensive explorations of both new physics and observational systematics, for example, the late-time systematic…
Nonperturbative stochastic inflation in perturbative dynamical background
Xiao-Quan Ye, Shao-Jiang Wang
Inflationary models that contain a transient ultra-slow-roll phase can exhibit strong non-perturbative dynamics, making the usual perturbative treatment of cosmological fluctuation…