8 papers
Early-Time Nonlinear Growth in an Unstable Q-Ball Hairy Black Hole
Lang Cheng, Guangzhou Guo, Peng Wang +1
Early-time evolution away from an unstable equilibrium in a nonlinear system is often expected to be governed by the associated linear instability. Combining full nonlinear evoluti…
Hairless Black Hole by Superradiance
Sebastian Garcia-Saenz, Guangzhou Guo, Peng Wang +1
We investigate the interplaying effects of black hole scalarization and superradiance in the context of the Einstein-Maxwell-scalar model, with the scalar field possessing electric…
Schwarzschild Black Holes Immersed in Born-Infeld Magnetic Fields and Their Observational Signatures
Yiqian Chen, Guangzhou Guo, Benrong Mu +1
We investigate the influence of Born-Infeld (BI) nonlinear electrodynamics on magnetic field configurations, photon orbits, and black hole shadows for Schwarzschild black holes imm…
Spin-induced Scalarized Black Holes in Einstein-Maxwell-scalar Models
Lang Cheng, Guangzhou Guo, Peng Wang +1
We construct spin-induced scalarized black hole solutions in a class of Einstein-Maxwell-scalar models, where a scalar field is non-minimally coupled to the electromagnetic field.…
Stable long-term evolution in numerical relativity
Sebastian Garcia-Saenz, Guangzhou Guo, Peng Wang +1
We report on the potential occurrence of a numerical instability in the long-time simulation of black holes using the Baumgarte-Shapiro-Shibata-Nakamura formulation of numerical re…
Black hole accretion of scalar clouds with spontaneous symmetry breaking
Sebastian Garcia-Saenz, Guangzhou Guo, Peng Wang +1
Spontaneous scalarization of black holes typically occurs through the condensation of a scalar field, with the field evolving from a -symmetric phase into a symmetry-breaking…