17 citations · 18 across the 8 of their papers we have counts for
9 papers
Stochastic gravitational-wave background from self-interacting superradiant clouds
Yin-Da Guo, Richard Brito, Chen Yuan
Gravitational-wave (GW) observations offer a powerful probe of new fundamental fields. One well-motivated source is black hole (BH)--boson cloud systems, in which an ultralight sca…
Resonances as signatures of scalar clouds in eccentric extreme-mass-ratio inspirals
Qi-Xuan Xu, Richard Brito, Riccardo Della Monica +2
Ultralight scalars arise naturally in many extensions to the Standard Model and are compelling dark matter candidates. Around spinning black holes, dense scalar clouds could form t…
Relativistic effects in extreme-mass-ratio inspirals within scalar clouds: Eccentric and inclined orbits
Qi-Xuan Xu, Richard Brito, Riccardo Della Monica +2
We study extreme-mass-ratio inspirals (EMRIs) evolving in a scalar cloud environment that may form through superradiant instabilities, using a fully relativistic perturbative frame…
One-Loop Tensor Power Spectrum from a Non-Canonical Spectator Field during Inflation
Zhe Li, Chen Yuan, Qing-Guo Huang
We compute the full one-loop corrections to the primordial tensor power spectrum in an inflationary scenario with a {non-canonical spectator field}, using the in-in formalism. We d…
Whispers from the Early Universe: The Ringdown of Primordial Black Holes
Chen Yuan, Zhen Zhong, Qing-Guo Huang
We investigate the stochastic gravitational wave background (SGWB) generated by the ringdown phase of primordial black holes (PBHs) formed in the early universe. As the ringdown si…
Gravitational Waves from Accretion Disks: Turbulence, Mode Excitation and Prospects for Future Detectors
Chen Yuan, Vitor Cardoso, Francisco Duque +1
We study gravitational-wave emission by turbulent flows in accretion disks around spinning black holes or neutron stars. We aim to understand how turbulence can stochastically exci…
Constraints on the Primordial Black Hole Abundance through Scalar-Induced Gravitational Waves from Advanced LIGO and Virgo's First Three Observing Runs
Yang Jiang, Chen Yuan, Chong-Zhi Li +1
As a promising dark matter candidate, primordial black holes (PBHs) lighter than are supposed to have evaporated by today through Hawking radiation. This sc…
Gravitational Waves Induced by Scalar Perturbations with a Broken Power-law Peak
Chong-Zhi Li, Chen Yuan, Qing-guo Huang
We give an analytical approximation for the energy spectrum of the scalar-induced gravitational waves (SIGWs) generated by a broken power-law power spectrum, and find that both the…
GW230529_181500: A Potential Primordial Binary Black Hole Merger in the Mass Gap
Qing-Guo Huang, Chen Yuan, Zu-Cheng Chen +1
During the fourth observing run of the LIGO-Virgo-KAGRA detector network, the LIGO Livingston observatory detected a coalescing compact binary, GW230529_181500, with component mass…