164 citations · 1.1k across the 30 of their papers we have counts for
7 papers · 1 filter
Self-stimulated avalanche in superradiant axion clouds
Zhen-Hong Lyu, Rong-Gen Cai, Jing Liu
Boson clouds formed via superradiance around spinning black holes offer a novel probe of ultralight particles. We show that such gravitational atoms can undergo a self-stimulated a…
The curvature perturbations and induced gravitational waves induced by the first-order phase transition during reheating
Xiao-Bin Sui, Jing Liu, Rong-Gen Cai
We propose a novel mechanism where a first-order phase transition modulates the decay rate of a massive field. This modulation, even if the scalar field has negligible energy densi…
Probing Warm Inflation via Correlated Gravitational Waves from First Order Phase Transitions
Xiao-Bin Sui, Jing Liu, Rong-Gen Cai
We investigate the properties of gravitational waves generated by heating induced phase transitions in warm inflation. In this scenario, the heating phase of inflation followed by…
Gravitational wave cosmology
Ligong Bian, Rong-Gen Cai, Yu-Qi Dong +18
Gravitational waves (GWs) originating from cosmological sources offer direct insights into the physics of the primordial Universe, the fundamental nature of gravity, and the cosmic…
Gravitational laser: the stimulated radiation of gravitational waves from the clouds of ultralight bosons
Jing Liu
Stimulated radiation and gravitational waves (GWs) are two of the most important predictions made by Albert Einstein. In this work, we demonstrate that stimulated GW radiation can…
The Gravitational-Wave Physics II: Progress
Ligong Bian, Rong-Gen Cai, Shuo Cao +15
It has been a half-decade since the first direct detection of gravitational waves, which signifies the coming of the era of the gravitational-wave astronomy and gravitational-wave…
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…