136 citations · 1.3k across the 55 of their papers we have counts for
56 papers
T-duality of string charge density/bit threads correspondence in type II supergravity
Houwen Wu, Shuxuan Ying
In this paper, we study Abelian T-duality of the string charge density/bit threads correspondence in ten-dimensional Type II supergravity. T-duality along the common compact circle…
Mixed State Entanglement Entropy in CFT
Xin Jiang, Peng Wang, Houwen Wu +1
How to calculate the entanglement entropy between two subsystems for a mixed state has remained an important problem. In this paper, we provide a straightforward method, namely the…
Realization of "ER=EPR"
Xin Jiang, Peng Wang, Houwen Wu +1
We provide a concrete and computable realization of the conjecture, by deriving the Einstein-Rosen bridge from the quantum entanglement in the thermofield double CFT. The…
How Einstein's Equation Emerges From CFT
Xin Jiang, Peng Wang, Houwen Wu +1
The {\it finiteness} of the entanglement entropies between disjoint subsystems enables us to show that, the dynamical equation of the entanglement entropy in CFT is precisely t…
String Scattering and Evolution of Ryu-Takayanagi Surface
Xin Jiang, Houwen Wu, Haitang Yang
In this paper, our aim is to illustrate that the process of open string scattering corresponds to the evolution of the entanglement wedge, where the scattering distance is identifi…
An alternative to purification in CFT
Xin Jiang, Peng Wang, Houwen Wu +1
In conformal field theories, in contrast to \emph{adding} some auxiliary states into the bipartite mixed state as the usual purifications do, we show a pure entangled stat…
Gravitational Lensing by Transparent Janis-Newman-Winicour Naked Singularities
Deyou Chen, Yiqian Chen, Peng Wang +2
The Janis-Newman-Winicour (JNW) spacetime can describe a naked singularity with a photon sphere that smoothly transforms into a Schwarzschild black hole. Our analysis reveals that…
Scalarized Kerr-Newman Black Holes
Guangzhou Guo, Peng Wang, Houwen Wu +1
In this paper, we construct scalarized rotating black holes within the framework of Einstein-Maxwell-scalar models. These models incorporate non-minimal couplings that can induce t…
Gravitational Lensing by Born-Infeld Naked Singularities
Yiqian Chen, Peng Wang, Houwen Wu +1
We examine the gravitational lensing phenomenon caused by photon spheres in the Born-Infeld naked singularity spacetime, where gravity is coupled with Born-Infeld electrodynamics.…
Timelike entanglement entropy in dS/CFT
Xin Jiang, Peng Wang, Houwen Wu +1
In the context of dS/CFT, we propose a timelike entanglement entropy defined by the renormalization group flow. This timelike entanglement entropy is calculated in CFT by u…
Superradiance Instabilities of Charged Black Holes in Einstein-Maxwell-scalar Theory
Guangzhou Guo, Peng Wang, Houwen Wu +1
We study time evolutions of charged scalar perturbations on the background of a charged hairy black hole, in which the perturbations can be governed by a double-peak effective pote…
Timelike entanglement entropy and deformation
Xin Jiang, Peng Wang, Houwen Wu +1
In a previous work arXiv:1811.07758 about the deformed CFT, from the consistency requirement of the entanglement entropy theory, we found that in addition to the usu…
Black Holes with Multiple Photon Spheres
Guangzhou Guo, Yuhang Lu, Peng Wang +2
Recently, asymptotically-flat black holes with multiple photon spheres have been discovered and found to produce distinctive observational signatures. In this paper, we focus on wh…
Observational Appearance of a Freely-falling Star in an Asymmetric Thin-shell Wormhole
Yiqian Chen, Peng Wang, Houwen Wu +1
It has been recently reported that, at late times, the total luminosity of a star freely falling in black holes decays exponentially with time, and one or two series of flashes wit…
Appearance of an Infalling Star in Black Holes with Multiple Photon Spheres
Yiqian Chen, Guangzhou Guo, Peng Wang +2
Photon spheres play a pivotal role in the imaging of luminous objects near black holes. In this paper, we examine observational appearances of a star freely falling in hairy black…
Gravitational Lensing by Black Holes with Multiple Photon Spheres
Guangzhou Guo, Xin Jiang, Peng Wang +1
We study gravitational lensing of light by hairy black holes, which, in a certain parameter regime, can possess two photon spheres of different size outside the event horizon. In p…
Echoes from Hairy Black Holes
Guangzhou Guo, Peng Wang, Houwen Wu +1
We study the waveforms of time signals produced by scalar perturbations in static hairy black holes, in which the perturbations can be governed by a double-peak effective potential…
Quasinormal Modes of Black Holes with Multiple Photon Spheres
Guangzhou Guo, Peng Wang, Houwen Wu +1
For a static and spherically symmetric black hole, a photon sphere is composed of circular null geodesics of fixed radius, and plays an important role in observing the black hole.…
Connections between reflected entropies and hyperbolic string vertices
Peng Wang, Houwen Wu, Haitang Yang
In this paper, we establish connections between reflected entropies of multipartite mixed states in CFT and hyperbolic string vertices of closed string field theory (CSFT). W…
Testing Kerr Black Hole Mimickers with Quasi-Periodic Oscillations from GRO J1655-40
Xin Jiang, Peng Wang, Houwen Wu +1
The measurements of quasi-periodic oscillations (QPOs) provide a quite powerful tool to test the nature of astrophysical black hole candidates in the strong gravitational field reg…
Thermodynamics and Phase Structure of an Einstein-Maxwell-scalar Model in Extended Phase Space
Guangzhou Guo, Peng Wang, Houwen Wu +1
In this paper, we study thermodynamics and phase structure of asymptotically AdS hairy and Reissner-Nordström-AdS (RNAdS) black holes in the extended phase space, where the cosmolo…
Photon Ring and Observational Appearance of a Hairy Black Hole
Qingyu Gan, Peng Wang, Houwen Wu +1
Recently, the image of a Schwarzschild black hole with an accretion disk has been revisited, and it showed that the "photon ring", defined as highly bent light rays that intersect…
Photon Spheres and Spherical Accretion Image of a Hairy Black Hole
Qingyu Gan, Peng Wang, Houwen Wu +1
In this paper, we first consider null geodesics of a class of charged, spherical and asymptotically flat hairy black holes in an Einstein-Maxwell-scalar theory with a non-minimal c…
Scalarized Einstein-Maxwell-scalar Black Holes in Anti-de Sitter Spacetime
Guangzhou Guo, Peng Wang, Houwen Wu +1
In this paper, we study spontaneous scalarization of asymptotically anti-de Sitter charged black holes in the Einstein-Maxwell-scalar model with a non-minimal coupling between the…