4 papers
First Law of Black Hole Interior Dynamics
Ze-Xuan Xiong, H. Lu
We obtain a local first law of dynamics within the interior geometries that are governed by cosmological solutions connecting the event horizon and the Kasner-like singularity. Eva…
Kasner Singularity of Black Holes in Einstein-scalar Gravity
Ze-Xuan Xiong, H. Lu
We study the spacelike Kasner singularity of spherically-symmetric, static and asymptotically flat black holes in Einstein gravity minimally coupled to a massless scalar with a sui…
Gravitational Wave Birefringence in Symmetron Cosmology
Ze-Xuan Xiong, Da Huang
The symmetron is a light scalar which provides a screening mechanism so as to evade the strong constraints from local gravity tests. In order to achieve this goal, a symmetry…
Gravitational Wave Birefringence from Fuzzy Dark Matter
Da Huang, Ze-Xuan Xiong, Lei-Jian Wang
Gravitational wave (GW) birefringence is a remarkable phenomenon that can be used to test the parity violation in gravity. By coupling the fuzzy dark matter (FDM) scalar to the gra…