343 citations · 1.9k across the 36 of their papers we have counts for
4 papers · 1 filter
Beating the Lyth bound by parametric resonance during inflation
Yi-Fu Cai, Jie Jiang, Misao Sasaki +2
We propose a novel mechanism for enhancing the primordial gravitational waves without significantly affecting the curvature perturbations produced during inflation. This is achieve…
CMB polarization analysis on circular scans
Jia-Rui Li, Chunlong Li, Jie Jiang +4
Most cosmic microwave background experiments observe the sky along circular or near-circular scans on the celestial sphere. For such experiments, we show that simple linear systems…
Primordial black holes and gravitational waves from resonant amplification during inflation
Zihan Zhou, Jie Jiang, Yi-Fu Cai +2
We present a new realization of the resonant production of primordial black holes as well as gravitational waves in a two-stage inflation model consisting of a scalar field ϕwith a…
Numerical study of inflationary preheating with arbitrary power-law potential and a realization of curvaton mechanism
Jie Jiang, Qiuyue Liang, Yi-Fu Cai +2
During inflationary preheating, the energy stored in the inflaton field is rapidly converted into excitations of other entropy fields. This stage is characterized by exponential pa…