A self-consistent EOB--Teukolsky framework for generic extreme mass-ratio inspiralsWe present a full-relativistic waveform model for extreme mass-ratio inspirals (EMRIs) by self-consistently combining the effective one-body (EOB) formalism with the Teukolsky equation. The model…Xingyu Zhong, Wen-Biao Han, Ye Jiang et al.·Jun 8, 2026SaveLearn
Quantum Reference Fields Transformations in Linearized Quantum GravityDiffeomorphism invariance is a central feature of general relativity. Without external reference structures, matter and geometry must be specified relationally, with respect to internal subsystems…Lin-Qing Chen, Flaminia Giacomini·Jun 8, 2026SaveLearn
Geodesic structure of the cosmological Levi-Civita spacetimesWe investigate the implications of the behavior of geodesics in static, cylindrically symmetric spacetimes with a non-zero cosmological constant. We consider the symmetries of these spacetimes to…Adam Tyc, Martin Zofka·Jun 8, 2026SaveLearn
Detectability to extreme mass ratio inspirals with alternative space-based detector networksExtreme mass ratio inspirals (EMRIs) are among the primary targets for space-based gravitational-wave (GW) detectors, providing valuable opportunities to study stellar-mass compact objects orbiting…Chao Zhang, Gang Wang·Jun 8, 2026SaveLearn
A Lagrangian framework for canonical analysis for the Holst model with β= 0We perform a canonical analysis of the Holst model for General Relativity, within the framework laid out in arXiv:2401.07307 and arXiv:2010.07725, distinguishing our approach by setting the Barbero…Roberto Ciccarelli, Lorenzo Fatibene·Jun 8, 2026SaveLearn
Axial Oscillations of Viscous Neutron StarsThe oscillation modes of stars play an important role in observations, and on the understanding of stellar stability properties. The role of viscosity in the oscillation modes of compact stars has…Sofía Bussières, Jaime Redondo-Yuste, José Javier Ortega Gómez et al.·Jun 8, 2026SaveLearn
Revisiting critical orbits of test particles traveling in a black hole backgroundThis paper systematically revisits the critical orbits of test particles in various black hole backgrounds, including Schwarzschild, Reissner-Nordström, Kerr, and Kerr-Newman spacetimes. We identify…Ping Li, Jun Cheng, Jiang-he Yang·Jun 8, 2026SaveLearn
Polar perturbations of dilaton-Euler-Heisenberg black holesWe investigate the quasinormal modes of polar metric-dilaton perturbations around the dilaton-Euler-Heisenberg (dEH) black holes with dilaton hair. The dEH black holes are obtained from the…Sheng-Yuan Li, Yun Soo Myung, Ming Zhang et al.·Jun 8, 2026SaveLearn
Revisited apparent horizon entropy and GSL in modified gravityThis work presents a universal and revisited formalism for the entropy of the apparent horizon in modified gravity to investigate the validity of the Generalized Second Law (GSL) of thermodynamics.…Soma Heydari, Parastoo Askari, Kayoomars Karami·Jun 8, 2026SaveLearn
Pseudospectrum and (in)stability of black hole total transmission modesTotal transmission modes (TTMs) are modes with complex frequencies that propagate across a black hole spacetime without reflection. Recently, it is found that suitably tailored time-dependent…Yu-Sen Zhou, Ming-Fei Ji, Liang-Bi Wu et al.·Jun 8, 2026SaveLearn
Gauge Symmetries, Contact Reduction, and Singular Field TheoriesThe symmetry reduction of dynamical systems that are invariant under changes of global scale is well-understood for classical theories of particles, and fields. The excision of the superfluous degree…Callum Bell, David Sloan·Jun 8, 2026SaveLearn
Imprints of quantum vacuum fluctuations on the gravitational field of a spherical massThe Schwarzschild geometry, describing the gravitational field of a spherical mass in classical vacuum, is one of the most famous vacuum solutions of the Einstein field equations. Classical vacuum is…Raúl Carballo-Rubio, Francesco Di Filippo, Shinji Mukohyama et al.·Jun 8, 2026SaveLearn
Compact Cauchy horizons admit constant surface gravityWe prove that in any spacetime dimension and under the null energy condition, every totally geodesic connected smooth compact null hypersurface (hence every compact Cauchy horizon) admits a smooth…Raymond A. Hounnonkpe, Ettore Minguzzi·Jun 8, 2026SaveLearn
Probing the equation of state of neutron stars using neutrino oscillationsWe study the phenomena of neutrino oscillations and flavour mixing by incorporating the gravitational effects through the Dirac equation in curved spacetime inside a spherically symmetric star. We…Siddhartha Bandyopadhyay, Golam Mortuza Hossain·Jun 8, 2026SaveLearn
Line-of-sight acceleration in compact binaries with higher harmonics and eccentricityDirect detections of gravitational waves provide a unique opportunity to probe the astrophysical origin of compact binary mergers. The formation channels of these systems remain highly debated, and a…Soumen Roy, Justin Janquart·Jun 7, 2026SaveLearn
Non-Perturbative Bounds on Cosmological Backreaction, the Non-Linear Scale, and Gauge-Invariant Mutual Information from the Matter Power SpectrumWe apply the mesoscopic coarse-graining framework of~OsanoMeso,OsanoExtensivity,OsanoPerturbation to three problems in Cosmological Perturbation Theory and the backreaction debate.…Bob Osano·Jun 7, 2026SaveLearn
Forward Construction of Vacuum Initial Data with Borderline DecayWe make use of the free data formalism developed in CK25 to construct solutions of the Einstein vacuum constraint equations by integrating in the forward direction. This, together with a new…Xuantao Chen, Sergiu Klainerman·Jun 7, 2026SaveLearn
Hawking Radiation from the Dymnikova Regular Black HoleWe study Hawking radiation of the Dymnikova regular black hole. This model replaces the central singularity by a smooth de Sitter core while remaining Schwarzschild-like far from the hole, and its…Milena Skvortsova·Jun 7, 2026SaveLearn
Frenet-Serret equations with variable proper acceleration in Minkowski spacetimeWe study Frenet-Serret equations for timelike worldlines in Minkowski spacetime with proper-time-dependent curvature and torsion. This corresponds to relativistic motion with non-uniform proper…Ivan Perez-Roman, Michael R. R. Good, Yen Chin Ong et al.·Jun 7, 2026SaveLearn
Towards the consistent perturbative expansion in discrete gravityWe consider correctly defining the perturbative expansion in a discrete gravity (simplicial or Regge calculus) needed to study physical effects like graviton loop corrections to Newton's…V. M. Khatsymovsky·Jun 7, 2026SaveLearn
Macroscopic backreaction of the trace anomaly on classical vacuum backgroundsWe study the backreaction of quantum fields in the Boulware vacuum state on the Schwarzschild geometry, using the Riegert--Mottola--Vaulin renormalized stress-energy tensor derived from the conformal…Raúl Carballo-Rubio, Francesco Di Filippo, Shinji Mukohyama et al.·Jun 7, 2026SaveLearn
Stimulated Emission from Boson CloudsGravitational-waves from astrophysical sources are characterized by their extreme faintness, which remains a primary obstacle for both current and next generation detectors. While rotating black…Yu An, Xian-Hui Ge, Yun-Gui Gong et al.·Jun 6, 2026SaveLearn
Higher-dimensional quantum-corrected Oppenheimer-Snyder model with a cosmological constantWe extended the higher-dimensional quantum Oppenheimer-Snyder model to the case with a cosmological constant. For AdS case, we discuss its thermodynamic properties in extend phase space formalism and…Shudi Jiang, Jianhui Lin, Xiangdong Zhang·Jun 6, 2026SaveLearn
Warped Product Einstein Manifolds in Four DimensionsOn four-dimensional (pseudo-)Riemannian manifolds M the curvature tensor (viewed as an endomorphism on 2-forms) admits a chiral 6 × 6 matrix representation which decomposes into…Jack C. M. Hughes, Joudy F. Jamal Beek, Fedor V. Kusmartsev·Jun 6, 2026SaveLearn
Degenerate Geometries as Matter-Free Physical Configurations in General Relativity: Three ExamplesWe examine three degenerate spacetime configurations with wormhole topology, obtained via branching coordinate transformations of the Rindler, Minkowski, and Schwarzschild vacuum metrics.These…Juri Dimaschko·Jun 6, 2026SaveLearn