5 papers
Radio Killed the Axion Star: Constraining Axion Properties with Radio Telescopes
Patrick J. Fox, Neal Weiner, Huangyu Xiao
Axion dark matter or any ultralight bosonic dark matter can go through Bose-Einstein condensation due to the large phase density, leading to the formation of axion stars or soliton…
Universal lower bound on the axion decay constant from free streaming effects
Keisuke Harigaya, Wayne Hu, Rayne Liu +1
We show that enhancement of the axion relic abundance compared to the standard misalignment contribution generically leads to the production of nonzero momentum axion modes, result…
Probing Primordial Power Spectrum and Non-Gaussianities With Fast Radio Bursts
Zhiyao Lu, Lian-Tao Wang, Huangyu Xiao
We use the precision measurements of the arrival time differences of the same fast radio burst (FRB) source along multiple sightlines to measure the primordial power spectrum and N…
Interference with Gravitational Instability: Hot and Fuzzy Dark Matter
Rayne Liu, Wayne Hu, Huangyu Xiao
Wave or fuzzy dark matter produced with high momenta behaves in many ways like hot particle dark matter while also possessing seemingly different phenomenology due to wave interfer…
Monopole Catalyzed Baryogenesis with a angle
T. Daniel Brennan, Lian-Tao Wang, Huangyu Xiao
Monopoles are generally expected in Grand Unified Theories (GUTs) where they can catalyze baryon decay at an unsuppressed rate by the Callan-Rubakov effect. For the first time, we…