144 citations · 587 across the 16 of their papers we have counts for
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astro-ph.CO2022★ 17 cited
Sudden braking and turning with a two-field potential bump: primordial black hole formation
Chengjie Fu, Chao Chen
We investigate the amplification of curvature perturbations in a two-field inflation model featuring a Gaussian potential bump. When the inflaton encounters a potential bump along…
astro-ph.CO2022★ 28 cited
Primordial black holes and induced gravitational waves from double-pole inflation
Chengjie Fu, Shao-Jiang Wang
The primordial black hole (PBH) productions from the inflationary potential with an inflection point usually rely heavily on the fine-tuning of the model parameters. We propose in…
gr-qc2022★ 16 cited
Generation of gravitational waves in dynamical Chern-Simons gravity
Zhi-Zhang Peng, Zhen-Min Zeng, Chengjie Fu +1
We investigate gravitational waves (GWs) generated in a two-field inflationary model with a non-canonical kinetic term, in which the gravitational Chern-Simons term is coupled to a…