Flexible Gravitational-Wave Parameter Estimation with TransformersGravitational-wave data analysis relies on accurate and efficient methods to extract physical information from noisy detector signals, yet the increasing rate and complexity of observations represent…Annalena Kofler, Maximilian Dax, Stephen R. Green et al.·Jun 24, 2026SaveLearn
Non-stationary noise in gravitational wave analyses: The wavelet domain noise covariance matrixGravitational wave detectors produce time series of the gravitational wave strain co-added with instrument noise. For evenly sampled data, such as from laser interferometers, it has been traditional…Neil J. Cornish·Jun 24, 2026SaveLearn
Quantum Damping of Cosmological Shear: A New Prediction from Loop Quantum CosmologiesWe study the dynamics of the Bianchi I universe in modified loop quantum cosmology (mLQC-I) and uncover a robust mechanism for isotropization: the shear is dynamically suppressed after the bounce and…Wen-Cong Gan, Leila L. Graef, Rudnei O. Ramos et al.·Jun 24, 2026SaveLearn
Quasinormal mode content of binary black hole ringdownsWe present a fully Bayesian, data-driven framework for identifying quasinormal modes in high-accuracy Cauchy-Characteristic Evolution (CCE) gravitational waveforms. Applying this to a public catalog,…Richard Dyer, Christopher J. Moore·Jun 24, 2026SaveLearn
Quasinormal modes from numerical relativity with Bayesian inferenceNumerical relativity (NR) enables the study of physics in strong and dynamical gravitational fields and provides predictions for the gravitational-wave signals produced by merging black holes.…Richard Dyer, Christopher J. Moore·Jun 24, 2026SaveLearn
A fast deep-learning approach to probing primordial black hole populations in gravitational wave eventsPrimordial black holes (PBHs), envisioned as a compelling dark matter candidate and a window onto early-Universe physics, may contribute to some of the gravitational-wave (GW) signals detected by the…Jun-Qian Jiang, Hai-Long Huang, Jibin He et al.·Jun 24, 2026SaveLearn
Observable strong field effects of extra spacetime dimension in the braneworld black holeInspired by the string theory, the braneworld picture introduces extra dimensions beyond the four that may have observable non-trivial effects in short distance (strong field) gravity experiments. A…K. K. Nandi, R. N. Izmailov, R. Kh. Karimov et al.·Jun 23, 2026SaveLearn
Diffeomorphism-Invariant Quantities in Phase Space: More than CorrelationsA popular view in the foundations of diffeomorphism-invariant theories is that their physical content is encoded in correlations or `observables': a set of phase space functions that have…Álvaro Mozota Frauca·Jun 23, 2026SaveLearn
Modeling Direct Waves in Binary Black Hole RingdownsDirect waves, prompt signals propagating from a plunging object to the observer, exist alongside quasinormal modes in binary black hole ringdown. It has been suggested that the properties of the…Richard Dyer, Adrian Ka-Wai Chung, Christopher J. Moore·Jun 23, 2026SaveLearn
Non-perturbative, background independent Fock representations for canonical quantum gravityA UV complete quantum field theory of general relativity is believed to require a non-perturbative approach. Moreover, background independence of classical general relativity supplies a physical…T. Thiemann·Jun 23, 2026SaveLearn
Quintic Modification to Lifshitz Quasi-topological Black HolesWe extend the analysis of Lifshitz black holes to quintic order in five-dimensional quasi-topological gravity coupled to a massive Abelian vector field. Starting from a static ansatz with a…A. Bazrafshan, A. R. Olamaei, M. Ghanaatian·Jun 23, 2026SaveLearn
The Bondi--Sachs gauge, BMS frames, and memory in black hole perturbation theoryAs LISA and other next-generation detectors demand increasingly accurate waveform models, there is a growing need for these models to precisely control gauge freedoms that had previously been…Andrew Spiers, Adam Pound, Jordan Moxon·Jun 23, 2026SaveLearn
Radial Mirror Scattering and the QNM Convergence RegionWe revisit the convergence region of the quasinormal modes expansion of Schwarzschild retarded Green functions from a radial scattering viewpoint. The tortoise coordinate admits a natural reflection…Alex Kehagias, Antonio Riotto·Jun 23, 2026SaveLearn
Reduction of the Finsler gravity vacuum equation and dynamics for the cosmological Landsberg spacetimesWhen solving the Einstein vacuum equations, a very helpful feature is that they reduce simply to the vanishing of the Ricci tensor. In Finsler gravity, a promising extension of general relativity…Christian Pfeifer, Fidel F. Villaseñor·Jun 23, 2026SaveLearn
The ω-Effect from a Multimode Squeezed Graviton StateThe ω-effect in entangled neutral-meson systems provides a sensitive probe of CPT violation induced by quantum-gravitational environments. In open quantum systems, interactions with inaccessible…Nick E. Mavromatos, Sarben Sarkar·Jun 23, 2026SaveLearn
Strong field lensing and shadows of f(Q,B) gravity black holesWe investigate the strong field lensing of light by black holes (BHs)emerging in f(Q, B) theory of gravity, which is an extension of f(Q) gravity theory by including a boundary term…Rahul Das, Umananda Dev Goswami·Jun 23, 2026SaveLearn
Gravity theory of the generalized mass to horizon entropy The Iyer Wald approachIn this letter, our aim is to study the gravitational origin of the generalized mass-to-horizon entropy (GMHE), described by an entropic exponent index n and a multiplicative parameter…Subhra Mondal, Amitava Choudhuri·Jun 23, 2026SaveLearn
Binary black hole scattering with generic spinsIn this Letter, we confront high-order post-Minkowskian (PM) predictions for generic-spin black-hole scattering with numerical-relativity (NR) simulations for the first time, targeting improvements…Adam Clark, Geraint Pratten, Patricia Schmidt·Jun 23, 2026SaveLearn
On Deformed Phase Space Black HolesWe revisit the Schwarzschild black hole in the context of noncommutative phase space. By mapping the horizon area operator into a two-dimensional harmonic oscillator structure, we derive the…A. Crespo-Hernández, E. A. Mena-Barboza, M. Sabido·Jun 23, 2026SaveLearn
Fermionic Love number of higher-dimensional Reissner-Nordström black holesIn this paper, we generalize our previous work on the fermionic tidal Love numbers (TLNs) to higher-dimensional Reissner-Nordström black holes. The massless Dirac equation is solved in…Xiankai Pang, Yu Tian, Hongbao Zhang et al.·Jun 23, 2026SaveLearn
Thin accretion disks around a Schwarzschild acoustic black holeWe investigate the properties of a thin accretion disk in the Novikov-Thorne framework around a Schwarzschild acoustic black hole characterized by a nonzero background fluid four-velocity $vr =…R. M. Yusupova, R. N. Izmailov, R. Kh. Karimov·Jun 23, 2026SaveLearn
Low-mass X-ray binaries as a probe of Kerr-MOG black hole spacetimeWe investigate the astrophysical implications of rotating black holes in modified gravity by studying the Kerr-MOG spacetime and applying it to several stellar-mass black hole candidates: A0620-00,…Bakhodirkhon Saidov, Bakhtiyor Narzilloev, Ibrar Hussain et al.·Jun 23, 2026SaveLearn
Nonlinear Stability of Kerr-Sen Black Holes in Merging BinariesWe investigate the stability of Kerr-Sen black holes, which arise in Einstein-Maxwell-dilaton-axion theory. Within a numerical relativity framework, we perform head-on binary black hole simulations…Andrew Carroll, Eric W. Hirschmann, Hyun Lim et al.·Jun 23, 2026SaveLearn
Nanohertz gravitational waves from domain walls nucleated during inflationWe investigate scalar-induced gravitational waves (SIGWs) produced by domain walls (DWs) nucleated via quantum tunneling during inflation with an extended nucleation time. In contrast to the…Zhi-Yong Huang, Tie-Jun Gao·Jun 23, 2026SaveLearn
Nonrotating and rotating black holes with secondary disformal hair in a ghost-free metric-affine parity-violating scalar-torsion theoryIn this paper, we formulate a ghost-free metric-affine scalar-torsion model in which a pseudoscalar field is coupled to the Nieh--Yan density and derivatively coupled to the Einstein-Palatini tensor.…E. Brito, G. Macedo, J. R. Nascimento et al.·Jun 23, 2026SaveLearn