99 citations · 374 across the 10 of their papers we have counts for
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Particle production during Inflation with a non-minimally coupled spectator scalar field
Zhe Yu, Chengjie Fu, Zong-Kuan Guo
We study the inflationary model with a spectator scalar field coupled to both the inflaton and Ricci scalar. The interaction between the field and the gravity, denoted by $…
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…
Production of gravitational waves during preheating in the Starobinsky inflationary model
Guoqiang Jin, Chengjie Fu, Puxun Wu +1
The production of GWs during preheating in the Starobinsky model with a nonminimally coupled auxiliary scalar field is studied through the lattice simulation in this paper. We find…
Resonance instability of primordial gravitational waves during inflation in Chern-Simons gravity
Chengjie Fu, Jing Liu, Tao Zhu +2
We investigate axion inflation where the gravitational Chern-Simons term is coupled to a periodic function of the inflaton. We find that tensor perturbations with different polariz…
Inflationary dynamics and preheating of the non-minimally coupled inflaton field in the metric and Palatini formalisms
Chengjie Fu, Puxun Wu, Hongwei Yu
The inflationary dynamics and preheating in a model with a non-minimally coupled inflaton field in the metric and Palatini formalisms are studied in this paper. We find that in bot…