13 citations · 27 across the 6 of their papers we have counts for
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astro-ph.CO2024★ 2 cited
Gravitational Waves from a Gauge Field Non-minimally Coupled to Gravity
Jian-Feng He, Chengjie Fu, Kai-Ge Zhang +1
An axion-like spectator during inflation can trigger a tachyonic instability which amplifies the modes of one of the helicities of the gauge field, resulting in the production of p…
astro-ph.CO2024★ 3 cited
Tensor bispectrum mediated by an excited scalar field during inflation
Zhi-Zhang Peng, Cheng-Jun Fang, Zong-Kuan Guo
We calculate the tensor bispectrum mediated by an excited scalar field during inflation and find that the bispectrum peaks in the squeezed configuration, which is different from th…
astro-ph.CO2024★ 1 cited
Phase transition catalyzed by primordial black holes
Zhen-Min Zeng, Zong-Kuan Guo
We investigate the first-order phase transition catalyzed by primordial black holes~(PBHs) in the early Universe. We find that super-horizon curvature perturbations generated in th…