255 citations · 2.3k across the 59 of their papers we have counts for
7 papers · 1 filter
A refined trans-Planckian censorship conjecture
Rong-Gen Cai, Shao-Jiang Wang
We propose a refined version of trans-Planckian censorship conjecture (TCC), which could be elaborated from the strong scalar weak gravity conjecture combined with some entropy bou…
Mass bound for primordial black hole from trans-Planckian censorship conjecture
Rong-Gen Cai, Shao-Jiang Wang
The recently proposed trans-Planckian censorship conjecture (TCC) imposes a strong constraint on the inflationary Hubble scale, of which the upper bound could be largely relaxed by…
Occurrence of semiclassical vacuum decay
Shao-Jiang Wang
Recently, a novel phenomenon is observed for vacuum decay to proceed via classically allowed dynamical evolution from initial configurations of false vacuum fluctuations. With the…
Pulsar Timing Array Constraints on the Induced Gravitational Waves
Rong-Gen Cai, Shi Pi, Shao-Jiang Wang +1
If the black holes detected by LIGO/VIRGO are primordial black holes (PBHs) sourcing from a large primordial curvature perturbation on small scales, the corresponding induced gravi…
Probing cosmic anisotropy with GW/FRB as upgraded standard sirens
Rong-Gen Cai, Tong-Bo Liu, Shao-Jiang Wang +1
Recently it was shown that cosmic anisotropy can be well tested using either standard siren measurement of luminosity distance from gravitational-wave (GW) observ…
Constraints on non-minimal coupling from quantum cosmology
Shao-Jiang Wang, Masaki Yamada, Alexander Vilenkin
Quantum cosmology is investigated in a de Sitter minisuperspace model with a quantized scalar field non-minimally coupled to curvature. Quantum states of the scalar field must sati…
Resonant multiple peaks in the induced gravitational waves
Rong-Gen Cai, Shi Pi, Shao-Jiang Wang +1
We identify analytically a multiple-peak structure in the energy-density spectrum of induced gravitational waves (GWs) generated at second-order from a primordial scalar perturbati…