40 citations · 169 across the 17 of their papers we have counts for
18 papers
Dark Matter Production from Bubble Collisions during a First-Order Phase Transition at the End of Inflation
Zihong Cheng, Fa Peng Huang
We study whether a first-order phase transition at the end of inflation can generate the observed dark matter abundance through bubble collisions. The transition occurs in a specta…
Accretion Disk Perturbations and Their Effects on Kerr Black Hole Superradiance and Gravitational Atom Evolution
Ruiheng Li, Zhong-hao Luo, Zehong Wang +1
Kerr black hole (BH) superradiance can form gravitational atoms and produce characteristic gravitational-wave signals, providing a probe of ultralight bosons and dark matter. In re…
Rapid post-merger gravitational-wave signals from magnetic black hole superradiance: novel approach to detect magnetic monopole and ultralight boson
Zhong-Hao Luo, Fa Peng Huang, Pengming Zhang +1
We present an analytic framework showing that a spinning black hole with net magnetic charge exhibits a greatly enhanced superradiant instability against charged scalar fields comp…
New dark matter production mechanism and the gravitational wave signals
Fa Peng Huang
The microscopic origin and production mechanism of dark matter (DM) remain central questions in cosmology and particle physics. While thermal freeze-out has long dominated DM model…
Effects of Early-Universe Inhomogeneity on Bubble Formation: Primordial Black Holes as an Extreme Case
Yijie Chang, Shihang Tang, Haowen Deng +3
Our early Universe is not perfectly homogeneous and it may contain some inhomogeneous sources, which might distort the local spacetime and modify the bubble nucleation rate. Taking…
Error estimates in the non-relativistic limit for the two-dimensional cubic Klein-Gordon equation
Yong Lu, Fangzheng Huang
In this paper, we study the non-relativistic limit of the two-dimensional cubic nonlinear Klein-Gordon equation with a small parameter which is inversely prop…
Freeze-in gravitational waves and dark matter in warm inflation
Quan Chen, Siyu Jiang, Dayun Qiu +2
Recent study [1] has suggested that warm inflation may be realized with a minimal extension of the Standard Model by a single scalar inflaton field with an axion-like coupling to g…
Pseudo-Goldstone Dark Matter from Primordial Black Holes: Gravitational Wave Signatures and Implications for KM3-230213A Event at KM3NeT
Siyu Jiang, Fa Peng Huang
In many well-motivated new physics models, the pseudo-Nambu-Goldstone boson (pNGB) from U(1) symmetry breaking emerges as a promising dark matter candidate. Its coupling, suppresse…
Self-interaction effects on the Kerr black hole superradiance and their observational implications
Ning Xie, Fa Peng Huang
Through the black hole (BH) superradiance, ultralight bosons can form dense clouds around rotating Kerr BHs. Certain ultralight bosons, such as axions and axion-like particles (pro…
Detectability of the Phase Transition Gravitational Waves in the DFSZ axion Model
Aidi Yang, Fa Peng Huang
In recent years, an increasing number of studies have focused on using gravitational waves to explore axions and the dynamics of Peccei-Quinn symmetry breaking at high energy scale…
Gauged Q-ball dark matter through a cosmological first-order phase transition
Siyu Jiang, Fa Peng Huang, Pyungwon Ko
As a new type of dynamical dark matter mechanism, we discuss the stability of the gauged Q-ball dark matter and its production mechanism through a cosmological first-order phase tr…
Implication of nano-Hertz stochastic gravitational wave on dynamical dark matter through a dark first-order phase transition
Siyu Jiang, Aidi Yang, Jiucheng Ma +1
For the first time, the expected stochastic gravitational wave background is probably discovered after observing the Hellings Downs correlation curve by several pulsar timing array…
Implication of nano-Hertz stochastic gravitational wave background on ultralight axion particles
Jing Yang, Ning Xie, Fa Peng Huang
Recently, the Hellings Downs correlation has been observed by different pulsar timing array (PTA) collaborations, such as NANOGrav, European PTA, Parkes PTA, and Chinese PTA. These…
Hydrodynamic effects on the filtered dark matter produced by a first-order phase transition
Siyu Jiang, Fa Peng Huang, Chong Sheng Li
Motivated by current status of dark matter (DM) search, a new type of DM production mechanism is proposed based on thedynamical process of a strong first-order phase transition in…
Model-dependent analysis method for energy budget of the cosmological first-order phase transition
Xiao Wang, Chi Tian, Fa Peng Huang
The kinetic energy of the fluid shell in the cosmological first-order phase transition is crucial for predicting the gravitational wave signals generated by the sound wave mechanis…
Bubble wall velocity during electroweak phase transition in the inert doublet model
Siyu Jiang, Fa Peng Huang, Xiao Wang
The bubble wall velocity is essential for the spectra of phase-transition gravitational waves, electroweak baryogenesis and the dynamical dark matter mechanism. We perform detailed…
Imprints of ultralight axions on the gravitational wave and pulsar timing measurement
Ning Xie, Fa Peng Huang
The axion or axion-like particle motivated from a natural solution of strong CP problem or string theory is a promising dark matter candidate. We study the new observational effect…
Sound velocity effects on the phase transition gravitational wave spectrum in the sound shell model
Xiao Wang, Fa Peng Huang, Yongping Li
A cosmological first-order phase transition gravitational wave could provide a novel approach to studying the early Universe. In most cases, the acoustic gravitational wave from th…