5 papers
Probing Lorentz-violating effects via precession and accretion disk images of a rotating bumblebee black hole
Qing Ou, Zhen-Bo Wu, Qian Wan +1
We investigate kinematic and optical signatures of Lorentz-violation in the strong-field region of a rotating bumblebee black hole generated by a scalar-gradient bumblebee field. T…
Distorting Kerr Images with Parity-Odd Scalar Hair
Qian Wan, Yehui Hou, Yang Huang +3
We investigate thin-disk imaging of Kerr black holes with synchronized scalar hair, focusing on backreacted parity-odd excited states of a complex scalar field minimally coupled to…
Probing the Scalar Hair of Rotating Horndeski Black Holes through Thick Disk Images
Qian Wan, Yehui Hou, Minyong Guo
Horizon-scale images of black holes provide a potential probe of fundamental physics, including tests of gravity and black hole hair. To assess the impact of scalar hair on accreti…
Realize cosmological inflation in supersymmetric Grand Unified models with -symmetry breaking
Qian Wan, Da-Xin Zhang
In this paper, we present a discussion for cosmological inflation based on a general renormalizable supersymmetric model which can be naturally embedded into grand unified models.…
Modified hybrid inflation in no-scale SUGRA with suppressed -symmetry breaking
Qian Wan, Da-Xin Zhang
A well-motivated cosmological hybrid inflation scenario based on no-scale SUGRA is considered. It is demonstrated that an extra suppressed -symmetry breaking term with $n\…