2 papers
hep-ph2026
Dynamics and Frequency Conversion of Accreting Axion Clouds
Ximeng Li, Zhen Zhong, Yifan Chen +3
Axion fields can form exponentially growing gravitational clouds around compact objects through self-interaction-driven relaxation of ambient axion waves. As the field amplitude ap…
astro-ph.CO2025
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…