Inverse Gertsenshteǐn-Zel'dovich Effect in Time-Independent Electromagnetic FieldThe inverse Gertsenshteǐn-Zel'dovich effect describes the conversion of gravitational waves into electromagnetic waves in the presence of a background electromagnetic field. This effect has…Rajendra Prasad Bhatt, Rudraksh Verma, R. Prasad et al.·Oct 29, 2026SaveLearn
Diamonds in the sky: the shape of gravitational waves from cosmic string cuspsWe carry an in-depth analysis of the gravitational wave (GW) emission of cosmic string cusps, going beyond the seminal work of Damour and Vilenkin. We identify two features that, to the best of our…Pierre Auclair, Chams Gharib, Danièle Steer·Oct 29, 2026SaveLearn
Self-Bound Anisotropic Stars in R+αR2 Gravity with a Hayward Exterior: Junction Conditions and NICER ConstraintsAnalytic compact-star models in modified gravity usually borrow the junction conditions of general relativity and fix their constants with radii derived for a particular stellar model. Here we avoid…Furqan Nazeer, Tooba Feroze·Oct 29, 2026SaveLearn
Looking for gravitational waves with orbital dynamics: GUEST mission and the μHz band of Gravitational Waves`Adding colour'' to the gravitational-wave sky by probing unexplored frequency bands has the potential to unveil new and unexpected phenomena in the Universe. The microhertz band, between…Diego Blas·Oct 29, 2026SaveLearn
HWF Analysis of TRN Black HolesWe extend the horizon wave-function (HWF) formalism to a spherically symmetric, charged, spinless quantum source in D + 1 dimensional spacetime geometry and construct the HWFs associated…Ashfaque Ahmad, Sudhir Kumar Gupta, Abbas Ali·Oct 29, 2026SaveLearn
Topological Interpretations in Anisotropic Kerr-Newman-AdS Black Hole ThermodynamicsThe interplay between black hole thermodynamics and topology provides a strong, coordinate-independent framework for discovering the underlying structure of black hole phase transitions as well as…Sreeshma A, Md Sabir Ali, C. L. Ahmed Rizwan·Oct 29, 2026SaveLearn
Quasinormal Mode Excitation in the Horizon Shear of Near-Extremal Kerr Black HolesThe horizon shear of a near-extremal Kerr black hole perturbed by an eccentric extreme mass ratio inspiral shows low amplitude, high frequency oscillations (''wiggles") after periapsis…Brennen Black·Oct 29, 2026SaveLearn
Quasinormal Modes of Slowly Rotating Black Holes in Hernquist Halos: Redshift and Angular MomentumWe investigate axial quasinormal modes of black holes embedded in Hernquist halos, using an established analytic static geometry with an inner vacuum cavity extending to 4MBH and…Xing-Hui Feng, Bo Wang·Oct 29, 2026SaveLearn
Covariant phase space analysis of static spherical vacua in power-law f(R) gravityWe formulate the static, spherically symmetric vacuum equations of power-law metric f(R) gravity as a covariant autonomous system using the (1+1+2) formalism. The finite critical sets include the…Mariam Campbell, Eduardo Bittencourt, Peter K. S. Dunsby·Oct 29, 2026SaveLearn
Robustness-based selection of laser-locking architectures for time-delay interferometry in space-based gravitational-wave detectorsSpace-based gravitational-wave detectors compare laser phases exchanged between distant spacecraft. Offset phase locking keeps beatnotes in the phasemeter band, while time-delay interferometry…Hao-Kang Chen, Pan-Pan Wang, Cheng-Gang Shao·Oct 29, 2026SaveLearn
Horizon Residues, Matter-Trace Winding and Test-Scalar Modes in f(Q,T) GravityWe extend the analysis of local horizon remnants in quadratic non-metricity gravity to a specific matter trace theory with the functional form f(Q) = Q + alpha Q2 + 16 pi lambda T. Here, the matter…Wen-Xiang Chen, M. Zeeshan Gul·Oct 29, 2026SaveLearn
Emergence of an acoustic black hole in a lattice modelWe build an acoustic black hole in a lattice model: a draining vortex evolved by the local collide-and-stream rule of a lattice-Boltzmann model, with no acoustic metric imposed, the geometry being…Antonino Flachi·Oct 29, 2026SaveLearn
Radial pulsations of gravitationally decoupled anisotropic self-bound stars with a generalized linear equation of stateWe construct anisotropic self-bound stellar configurations through gravitational decoupling in the minimal geometric deformation framework and investigate their stability against linear radial…D. Santana, C. Usca, J. Andrade et al.·Oct 29, 2026SaveLearn
The seeds and silhouettes of optimal gravitational shieldingWe construct complete vacuum initial data sets with prescribed asymptotically flat exterior geometry, including the gluing of two Schwarzschild exterior regions with small masses (which need not be…Bruno Le Floch, Philippe G. LeFloch·Oct 29, 2026SaveLearn
Scalar-induced gravitational waves in spatially covariant gravity with two tensorial degrees of freedomWe study scalar-induced gravitational waves (SIGWs) in a spatially covariant gravity model with two tensorial degrees of freedom, minimally coupled to a k-essence scalar field. For the parameter…Jia-Xi Feng, Yang Yu, Yan-Heng Yu et al.·Oct 29, 2026SaveLearn
Energy-flux noise induced by imperfections of the Gaussian beam in the Li-Baker HFGW detectorThis paper investigates the energy-flux noise induced by imperfections of the Gaussian beam (GB) in the Li-Baker high-frequency gravitational wave (HFGW) detector. Modeling these imperfections with…Lin-Lin Yang, Hao Yu, Pan-Pan Wang et al.·Oct 29, 2026SaveLearn
Gravitational lensing of gravitational waves by a Kerr black holeWe simulate the gravitational lensing of gravitational waves (GWs) by a Kerr black hole using a (1+1)-dimensional time-domain mode-sum approach. To enable efficient explicit time evolution, we…Jian-hua He·Oct 29, 2026SaveLearn
Complete quasinormal modes of Type-D black holes. II. Extremal Kerr black holesWe develop a double-confluent Heun method that extends our previous study of complete quasinormal-mode (QNM) spectra of Type-D black holes to extremal Kerr black holes. Radial boundary conditions and…Changkai Chen, Xiaohua Zhang, Zhoujian Cao et al.·Oct 29, 2026SaveLearn
Early-time tails in Kerr black hole ringdownBlack hole ringdowns are modelled as a superposition of quasinormal modes (QNMs), although the branch cut of the Green's function produces a nonoscillatory tail that may contaminate early-time…Ansh Gupta, Naritaka Oshita·Oct 28, 2026SaveLearn
Probing Scalar Polarization with Next-Generation Gravitational-Wave Detectors: The Roles of Detector Geometry and Source InclinationGravitational-wave observations of compact binaries offer a direct way to test whether gravity admits polarizations beyond the two tensor modes of general relativity. We perform a forecast to assess…Sk Md Adil Imam, Macarena Lagos·Oct 28, 2026SaveLearn
Integrable singularities obstruct Cauchy horizons and mass inflationBlack-hole interiors with an inner (Cauchy) horizon are unstable through the Poisson-Israel-Ori mass-inflation mechanism, governed by the Dray-'t Hooft-Redmount relation and widely regarded as a…Francisco Tello-Ortiz·Oct 28, 2026SaveLearn
The General-Relativistic Limit of f(R) GravityWe establish the general-relativistic limit of f(R) gravity coupled to a massless scalar field for small, asymptotically Euclidean, well-prepared Cauchy data near Minkowski spacetime. We prove global…Philippe G. LeFloch, Yue Ma·Oct 28, 2026SaveLearn
Unifying stochastic and deterministic signals: a practical search for the intermittent binary black-hole backgroundOver the past decade, the Advanced LIGO, Advanced Virgo, and KAGRA detectors have detected nearly 400 compact binary mergers, most of which are stellar-mass binary black-hole (BBH) mergers.…Tore Boybeyi, Vuk Mandic, Joseph Romano·Oct 28, 2026SaveLearn
Constructing likelihoods for a non-Gaussian gravitational-wave backgroundThe stochastic gravitational-wave background from stellar-mass compact binaries is non-Gaussian since it is made up of a finite number of individual mergers. Over the years, several methods have been…Tore Boybeyi, Vuk Mandic, Joseph Romano·Oct 28, 2026SaveLearn
Fermion-Boson Stars in Scalar-Tensor GravityIn the massless Damour-Esposito-Farèse scalar-tensor theory of gravity, we numerically construct static, spherically symmetric star models composed of a mixture of fermionic and bosonic matter,…Jorge Castelo Mourelle, Saeed Fakhry, Néstor Ortiz·Oct 28, 2026SaveLearn