Stable colored black holes with quartic self-interactionsWe analytically prove the linear radial stability of non-Abelian black holes with quartic self-interactions. The background, constructed from the Wu-Yang magnetic monopole ansatz, is an exact…Jose F. Rodriguez-Ruiz, Gabriel Gomez·May 21, 2026SaveLearn
Demagnetizing KBR and New Ricci-flat Rotating MetricWe construct a new Ricci-flat metric by demagnetizing the recently reported Kerr-Bertotti-Robinson (KBR) solution. The metric is a deformation of the Kerr metric characterized by a parameter B, so…Liang Ma, H. Lu·May 21, 2026SaveLearn
Analytical Fluxes from Generic Schwarzschild GeodesicsWe present an analytic method for computing gravitational-wave fluxes from bound Schwarzschild geodesics with arbitrary eccentricity. Our approach systematically expands the Fourier coefficients of…Majed Khalaf, Chris Kavanagh, Ofri Telem·May 21, 2026SaveLearn
Sensitivity of black hole spectral instability to ultraviolet perturbationsBlack hole quasinormal modes are known to exhibit spectral instability under ultraviolet perturbations of the effective potential. In the present work, we investigate the sensitivity of the…Ramin G. Daghigh, Michael D. Green, Guan-Ru Li et al.·May 21, 2026SaveLearn
Squashed Pyramid Interferometer Network (SPIN): Direct Access to Chirality of Cosmological Gravitational WavesThe cosmological gravitational wave background provides a powerful window on parity-violating physics at energies far beyond the reach of terrestrial experiments. However, any colocated planar…Dmitri E. Kharzeev, Azadeh Maleknejad, Saba Shalamberidze·May 21, 2026SaveLearn
High Sensitivity Methodologies to Detect Radio Band Gravitational WavesGravitational waves (GWs) can resonate with magnetic fields through the Gertsenshtein-Zeldovich effect, producing electromagnetic signals at the same frequency. In pulsar magnetospheres, this…Wei Hong, Peng He, Tong-Jie Zhang et al.·May 21, 2026SaveLearn
Thick Lunar Crust Amplifies Deci-Hertz Gravitational-Wave SignalGravitational waves (GWs) in the 0.011 Hz band encode unique signatures of the early universe and merging compact objects, but they are beyond the reach of existing observatories. Theoretical…Lei Zhang, Han Yan, Xian Chen et al.·May 21, 2026SaveLearn
GW231123: Overlapping Gravitational Wave Signals?The recently discovered gravitational wave event GW231123 was interpreted as the merger of two black holes with a total mass of 190-265 M, making it the heaviest such merger detected to date.…Qian Hu, Harsh Narola, Jef Heynen et al.·May 21, 2026SaveLearn
Discriminating scalar ultralight dark matter from quasi-monochromatic gravitational waves in LISAA scalar ultralight dark matter (ULDM) candidate would induce oscillatory motion of freely falling test masses via its coupling to Standard Model fields. Such oscillations would create an observable…Jordan Gué, Peter Wolf, Aurélien Hees·May 21, 2026SaveLearn
Covariant conservation laws, local invariance and Noether's second theoremWe lay down a set of requirements for a field theory to produce a covariant conservation law out of Noether's second theorem, and show that neither local invariance implies a covariant…Nuno Barros e Sá, Miguel A. S. Pinto, Tomás Trindade·May 21, 2026SaveLearn
ModMax black hole surrounded by perfect-fluid dark matter in Lorentz-violating Kalb-Ramond gravityWe investigate a ModMax black hole surrounded by perfect-fluid dark matter within the framework of Lorentz-violating Kalb-Ramond gravity. The model combines three physically distinct contributions:…Fernando M. Belchior, Faizuddin Ahmed, Edilberto O. Silva·May 20, 2026SaveLearn
Maximal extension of Schwarzschild-like spacetimes in Lorentz gauge theoryWe study the maximal analytic extension of the Schwarzschild-like black hole solution in Lorentz gauge theory. The lapse function is f(r)=A0-2-2/r, so the horizon is located at $r+=2…Mohsen Fathi·May 20, 2026SaveLearn
Relativity for Retired EngineersWe provide some guidance and examples to clear up common misconceptions about special relativity. These misconceptions often come from trying to express the truths of special relativity in Newtonian…David Garfinkle·May 20, 2026SaveLearn
Gravitational Wave Hyperbolic Catalog: Reanalyzing High-Mass Gravitational Wave Signals Using Hyperbolic WaveformsClose hyperbolic encounters between black holes produce distinctive bursts of gravitational radiation with a time-frequency morphology that is qualitatively different from that of quasi-circular…Jacob Lange, Danilo Chiaramello, Peter Lott et al.·May 20, 2026SaveLearn
Wave-optics gravitational wave lensing in modified gravityWe initiate the study of gravitational-wave lensing in the wave-optics regime within modified gravity. We consider a phenomenological setup in which the gravitational-wave amplitude obeys a…Alice Garoffolo, Gianmassimo Tasinato·May 20, 2026SaveLearn
Astrophysical Signature and Optical Appearance of Weyl--Corrected Einstein--Maxwell Black HolesIn this work, we investigate the physics of charged black holes modified by Weyl corrections, which emerge from the non-minimal coupling between spacetime curvature and electromagnetism. We begin by…Hassan Hassanabadi, Mrinnoy M. Gohain, Kalyan Bhuyan et al.·May 20, 2026SaveLearn
The Relativistic Gravitational Field of a Spherically Symmetric Extended BodyWe investigate the gravitational field of an extended spherically symmetric body within the framework of Extended Relativity (ER), a Lorentz-covariant formulation of relativistic gravity on a…Y. Friedman, S. I. Klimovsky·May 20, 2026SaveLearn
Kinematic selection of the viscous stress in relativistic dissipative hydrodynamicsAll standard formulations of relativistic dissipative hydrodynamics, from Eckart through Israel-Stewart to the recent BDNK framework, assume that the viscous stress depends on the shear tensor…Zhi-Wei Wang, Samuel L. Braunstein·May 20, 2026SaveLearn
Contrastive self-supervised convolutional autoencoder for core-collapse supernova gravitational-wave detectionGravitational-wave astronomy has opened a direct observational window onto compact-object dynamics, strong-field gravity, and cosmology. Among the transient sources accessible through this window,…Tian-Yang Sun, Yue Niu, Chun-Yan Jiang et al.·May 20, 2026SaveLearn
Fermion condensate at the event horizonSome arguments are considered in favor of the idea that the canonical anticommutation relations for fermions should be modified in curved spacetime near the event horizon of a black hole. Such a…Vladimir Dzhunushaliev, Vladimir Folomeev·May 20, 2026SaveLearn
Constraints on Kaniadakis Cosmology from Starobinsky Inflation and Primordial Tensor PerturbationsWe investigate a generalized entropic cosmology obtained by applying the gravity-thermodynamics conjecture to the Universe horizon using Kaniadakis statistics, namely a relativistic extension of the…Abdelhakim Benkrane, Giuseppe Gaetano Luciano·May 20, 2026SaveLearn
Are There Closed Timelike Curves in f(R,Lm,Φ,gμν∇μΦ∇νΦ)-Gravity?A modified gravitational model whose action is given by an arbitrary function of the Ricci scalar, the matter Lagrangian density, a scalar field, and its kinetic term is investigated as an extension…Faizuddin Ahmed, A. F. Santos·May 20, 2026SaveLearn
Wormholes in f(Q,T) gravity with different matter Lagrangian densityThis study explores asymptotically flat wormhole solutions in f(Q,T)=αQ+ βT gravity, expanding upon our prior work (arXiv:2602.00527v1) with matter Lagrangian density, Lm=-P . Here, we examine…Soudabe Nasirimoghadam, Foad Parsaei, Sara Rastgoo·May 20, 2026SaveLearn
Constraint-satisfying binary boson star initial data via XCFCNumerical-relativity simulations with non-trivial matter configurations require initial data that satisfy the Hamiltonian and momentum constraints of the Einstein equations. We construct…Gabriele Palloni, Nicolas Sanchis-Gual, José A. Font et al.·May 20, 2026SaveLearn
Effective spherical symmetry in Loop Quantum Gravity: A path integral approachIn this work a loop quantum corrected model is obtained for spherically symmetric space-times in the vacuum. This effective model is derived by the use of the path integral method, previously…Juan Carlos Del Águila, Hugo A. Morales·May 20, 2026SaveLearn