119 citations · 623 across the 15 of their papers we have counts for
3 papers · 1 filter
Primordial black holes and gravitational waves from parametric amplification of curvature perturbations
Rong-Gen Cai, Zong-Kuan Guo, Jing Liu +2
We investigate a new mechanism to create large curvature perturbations on small scales due to parameter resonance in a single-field inflationary model with a small periodic structu…
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…
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…