6 citations · 7 across the 6 of their papers we have counts for
6 papers
Wedge-avoidance Fisher Forecasts for Primordial Features from Dark-Ages 21-cm Power Spectrum and Bispectrum
Chen Zhang, Furen Deng, Yidong Xu +3
The Dark Ages offer a uniquely clean window on primordial physics, making the redshifted 21-cm signal a promising probe of inflation models. Forecasts for interferometric 21-cm mea…
A Designer's Guide to Lunar Far-Side Interferometer Array: Power Spectrum Measurement and Cosmological Constraints from the Dark Ages
Yuewei Wen, Bin Yue, Yidong Xu +4
The 21-cm emission line from neutral hydrogen during the cosmic Dark Ages can be a powerful probe of cosmological models and early universe physics. This work provides a quantitati…
Self-Consistent Parker Bound on Magnetic Monopoles
Chen Zhang, Chun-Yan Jiang, Nayun Jia +1
Magnetic monopoles arise generically in unified theories and offer a natural explanation of charge quantization. Beyond collider searches and cosmic-ray experiments, their flux is…
Dark radiation from Kerr primordial black holes: the role of superradiance
Nayun Jia, Chen Zhang, Xin Zhang
Light primordial black holes (PBHs) that fully evaporate before Big Bang Nucleosynthesis (BBN) produce dark radiation (DR) via Hawking radiation of gravitons, contributing to the e…
Superradiant dark matter production from primordial black holes: Impact of multiple modes and gravitational wave emission
Nayun Jia, Shou-Shan Bao, Chen Zhang +2
Rotating primordial black holes (PBHs) in the early universe can emit particles through superradiance, a process particularly efficient when the particle's Compton wavelength is co…
On the cosmological abundance of magnetic monopoles
Chen Zhang, Shi-Hao Zhang, Bowen Fu +2
We demonstrate that Debye shielding cannot be employed to constrain the cosmological abundance of magnetic monopoles, contrary to what is stated in the previous literature. Current…