74 citations · 354 across the 30 of their papers we have counts for
31 papers
Time-domain analysis of scalar perturbations of Kerr--Newman black holes with Chern--Simons and Maxwell couplings
Yan-Ming Chen, Hyat Huang, Meng-Yun Lai +3
To study the onset of scalarization, we investigate linear scalar perturbations around Kerr--Newman black holes in the Einstein-Chern-Simons-Maxwell-scalar theory with quadratic Ch…
Critical Scalarization for a Self-Gravitating Bosonic Condensate
Meng-Yun Lai, Hyat Huang, Wen-Cong Gan +2
We establish a minimal nonrelativistic realization of scalarization in a self-gravitating bosonic condensate coupled to a scalar response field. A local effective-mass shift and no…
Light rings and optical appearances of naked singularities, solitons, and black holes in beyond Horndeski gravity
Hyat Huang, Jutta Kunz, Rashmi Uniyal +1
We investigate the geodesic structure and optical appearance of compact objects with primary scalar hair in shift- and parity-symmetric beyond Horndeski gravity. The analytic solut…
Spin-Induced Nonlinear Scalarization of Kerr Black Holes in Einstein-scalar-Gauss-Bonnet Gravity
Meng-Yun Lai, Hyat Huang, Jutta Kunz +2
We investigate spin-induced scalarization of Kerr black holes in an Einstein-scalar-Gauss-Bonnet (EsGB) model that does not admit a linear tachyonic instability of the scalar-free…
Thermodynamics and phase transitions of nonlinearly scalarized black holes in Einstein-scalar-Gauss-Bonnet theory
De-Cheng Zou, Xu Yang, Meng-Yun Lai +2
We investigate the thermodynamic properties of static nonlinearly scalarized black holes in Einstein-scalar-Gauss-Bonnet theory with polynomial coupling functions. Based on the sca…
Phase Structure of Scalarized Black Holes in Einstein-Scalar-Gauss-Bonnet Gravity
Carlos Herdeiro, Hyat Huang, Jutta Kunz +3
We revisit scalarized black holes in Einstein-scalar-Gauss-Bonnet gravity and analyze the thermodynamic phase transition between the Schwarzschild solution of general relativity an…
On Coordinate Singularities Induced by Trapping Horizons
Jinbo Yang, Hongwei Tan, Hyat Huang +1
The trapping (or apparent) horizon serves as a key tool for tracing the complete evolution of black holes. We investigate a class of coordinate singularities induced by such trappi…
Spontaneous scalarization of regular Hayward black holes in Einstein-nonlinear electromagnetic-scalar gravity
Lan-Lan Cai, Meng-Yun Lai, De-Cheng Zou +2
Regular Hayward black holes provide a useful setting for investigating scalarization in theories with nonminimally coupled matter sectors. Within the framework of Einstein-nonlinea…
Phase transitions of boson stars in scalar-tensor theories
Hyat Huang, Burkhard Kleihaus, Jutta Kunz +3
In scalar-tensor theories, compact objects may experience spontaneous scalarization. Recently, it was shown that matter-induced spontaneous scalarization of neutron stars is predom…
Can we distinguish whether black holes have singularities or not through echoes and light rings?
Xiao-Pin Rao, Hyat Huang
A recent work [Phys. Rev. D 111, 104040] shows that the curvature singularity of a black hole can vanish at a fine-tuned mass value, which implies that regular black holes could be…
Regular black holes and their singular families
Hyat Huang, Xiao-Pin Rao
Regular black holes without curvature singularity can arise in Einstein gravity with appropriate matter energy-momentum tensor. We show that these regular solutions represent only…
New Black Hole Solutions of Second and First Order Formulations of Nonlinear Electrodynamics
Yosef Verbin, Beyhan Pulice, Ali Övgün +1
Inspired by the so-called Palatini formulation of General Relativity and of its modifications and extensions, we consider an analogous formulation of the dynamics of a self-interac…
Gravitational lensing effect of black holes in effective quantum gravity
Hao Liu, Meng-Yun Lai, Xiao-Yin Pan +2
In the present work, we investigate the gravitational lensing effects of two quantum-modified black hole models recently proposed in effective quantum gravity. The light deflection…
Identifying doppelgange Black Holes through Shadow Images
Yukun Xu, Hyat Huang, Meng-Yun Lai +1
Recently, an interesting \textit{doppelgänge} black hole solution is obtained in the string-inspired Euler-Heisenberg theory, where the black holes have the same radii but share di…
Einstein-(complex)-Maxwell static boson stars in AdS
Carlos Herdeiro, Hyat Huang, Jutta Kunz +1
We consider a model with two real Maxwell fields (or equivalently, a complex Maxwell field) minimally coupled to Einsteins gravity with a negative cosmological constant in four spa…
Existence of nonlinearly scalarized black holes in Einstein-scalar-Gauss-Bonnet theory with polynomial couplings
De-Cheng Zou, Xu Yang, Meng-Yun Lai +5
Nonlinearly scalarized black holes are investigated in Einstein-scalar-Gauss-Bonnet (EsGB) theory with polynomial coupling functions satisfying , where $ζ'(ϕ) =…
Hairy Black Holes with Arbitrary Small Areas
Xiao-Ping Rao, Hyat Huang, Jinbo Yang
We obtained new hairy black hole solutions in Einstein-scalar theory, including asymptotic flat, de Sitter and anti-de Sitter black holes. The theory is inspired by Ref. [1], where…
Shadow images of compact objects in beyond Horndeski theory
Hyat Huang, Jutta Kunz, Deeshani Mitra
A beyond Horndeski theory is considered that admits wormholes, black holes and naked singularities. In this theory the shadow images of the black holes and the exotic compact objec…
Light Ring behind Wormhole Throat: Geodesics, Images and Shadows
Hyat Huang, Jutta Kunz, Jinbo Yang +1
The geodesics of the Ellis-Bronnikov wormhole with two parameters are studied. The asymmetric wormhole has only one light ring and one innermost stable circular orbit located on on…
Higher-order correction to weak-field lensing of an Ellis-Bronnikov wormhole
Tingqi Cai, Hyat Huang, Zun Wang +1
The gravitational lensing effect at higher order under weak-field approximation is believed to be important to distinguish black holes and other compact objects such as wormholes.…
Einstein-scalar field solutions in AdS spacetime: clouds, boundary conditions, and scalar multipoles
Dumitru Astefanesei, Hyat Huang, Jutta Kunz +1
We consider an Einstein-scalar field model which is a consistent truncation of gauged supergravity, the scalar field possessing a potential which is unbounded fr…
Echoes from Classical Black Holes
Hyat Huang, Min-Yan Ou, Meng-Yun Lai +1
We study echoes of free massless scalar from dyonic black holes in Einstein-Maxwell gravity extended with the quasi-topological electromagnetic term. These asymptotically-flat blac…
Echoes from Asymmetric Wormholes and Black Bounce
Min-Yan Ou, Meng-Yun Lai, Hyat Huang
The time evolution of the field perturbations in the wormhole and black bounce backgrounds are investigated. We find that the asymmetry of spacetime results in the asymmetry of the…
Trapping Horizons of the Evolving Charged Wormhole and Black Bounce
Jinbo Yang, Hyat Huang
We obtain one family of dynamic solutions in the Einstein-Maxwell-scalar(EMS) theory. Our solutions could describe the evolving charged black(white) hole or wormhole and its transi…