55 citations · 123 across the 12 of their papers we have counts for
12 papers
Purely quadratic non-Gaussianity from tachyonic instability: Primordial black holes and scalar-induced gravitational waves
He-Xu Zhang, Mei Huang
We investigate primordial black hole (PBH) formation in a cosmological scenario where curvature perturbations follow purely quadratic non-Gaussianity, ,…
Significance of soft-scale breaking on primordial black hole production in Coleman-Weinberg type supercooling-phase transition
He-Xu Zhang, Katsuya Hashino, Hiroyuki Ishida +1
Ultra-supercooling phase transitions can generate large overdensities in the Universe, potentially leading to the formation of primordial black holes (PBHs), which can also be a da…
Axionlike particle-assisted supercooling chiral phase transition in QCD: Identifying Coleman-Weinberg type-chiral phase transition in QCD-like scenarios
Zheng-liang Jiang, Yuepeng Guan, Mamiya Kawaguchi +3
We propose a new scenario to realize the Coleman-Weinberg (CW) type chiral phase transition in the QCD thermal history. This scenario predicts a heavy axionlike particle (ALP) with…
Walking-dilaton hybrid inflation with Higgs embedded in dynamical scalegenesis
Jie Liu, He-Xu Zhang, Hiroyuki Ishida +1
We propose a hybrid inflationary scenario based on eight-flavor hidden QCD with the hidden colored fermions being in part gauged under . This hidden QCD is almost scale…
Quasinormal modes and greybody factor of charged black hole in non-commutative geometry
Shi-Jie Ma, Rui-Bo Wang, Tian-Chi Ma +3
In this article, the quasinormal modes and greybody factor of charged black hole in non-commutative geometry are studied. Under the assumption of a uniformly distributed charge wit…
Impact of local CP-odd domain in hot QCD on axionic domain-wall interpretation for NANOGrav 15-year Data
Linlin Huang, Yuanyuan Wang, He-Xu Zhang +4
We argue that the axionic domain-wall with a QCD bias may be incompatible with the NANOGrav 15-year data on a stochastic gravitational wave (GW) background, when the domain wall ne…
Gravitational wave footprints from Higgs-portal scalegenesis with multiple dark chiral scalars
He-Xu Zhang, Shinya Matsuzaki, Hiroyuki Ishida
We discuss the gravitational wave (GW) spectra predicted from the electroweak scalegenesis of the Higgs portal type with a large number of dark chiral flavors, which many flavor QC…
Dynamical realization of the small field inflation of Coleman-Weinberg type in the post supercooled universe
He-Xu Zhang, Hiroyuki Ishida, Shinya Matsuzaki
The small field inflation (SFI) of Coleman-Weinberg (CW) type suffers from precise tuning of the initial inflaton field value to be away from the true vacuum one. We propose a dyna…
Double shadow of a 4D Einstein-Gauss-Bonnet black hole and their connection between with quasinormal modes
Tian-Tian Liu, He-Xu Zhang, Yu-Hang Feng +2
In this paper, we study the shadow of a 4D Einstein-Gauss-Bonnet black hole as photons couple to the Weyl tensor and find that the propagation of light depends on its polarization…
Bardeen black hole in magnetically charged four-dimensional Einstein-Gauss-Bonnet gravity
Shu-Jun Zhang, He-Xu Zhang, Lei Shao +2
In this paper, we investigate the shadow radius and quasinormal modes of a four-dimensional magnetically charged Einstein-Gauss-Bonnet Bardeen black hole and point out a simple con…
Shadow cast by a rotating and nonlinear magnetic-charged black hole in perfect fluid dark matter
Tian-Chi Ma, He-Xu Zhang, Peng-Zhang He +3
We derived an exact solution of the spherically symmetric Hayward black hole surrounded by perfect fluid dark matter (PFDM). By applying the Newman-Janis algorithm, we generalized…
Bardeen black hole surrounded by perfect fluid dark matter
He-Xu Zhang, Yuan Chen, Tian-Chi Ma +2
We derive an exact solution of the spherically symmetric Bardeen black hole surrounded by perfect fluid dark matter (PFDM). By treating the magnetic charge and dark matter para…