Asymptotic Solutions of Radiating StarsWe investigate the evolution of the surface of radiating stars by studying the asymptotic behaviour of exact solutions initiated via the stationary boundary condition. This boundary condition leads…R. S. Bogadi, G. Leon, M. Govender et al.·Mar 30, 2026SaveLearn
Cosmological peculiar velocities in general relativity?Cosmological peculiar velocities have traditionally been studied within the framework of Newtonian theory. Around the turn of the century, a few quasi-Newtonian analyses appeared in the literature,…Christos G. Tsagas·Mar 30, 2026SaveLearn
Antigravity mechanism in the theory of dual relativityIn the paper, one of the physical consequences of the recently developed theory of dual relativity (TDR) is considered. The general framework of TDR is described and some results previously obtained…V. I. Tselyaev·Mar 30, 2026SaveLearn
Sachs Equations and Plane Waves, V: Ward, Fourier, and Heisenberg Symmetry on Plane WavesThis article studies wave equations and their solutions on plane wave spacetimes of arbitrary dimension, developing the interplay among three structural layers: the Ward progressing-wave…Jonathan Holland, George Sparling·Mar 30, 2026SaveLearn
Spinning Particles around Einstein-Geometric Proca AdS Compact ObjectsWe investigate the dynamics of spinning test particles in the vicinity of Einstein--geometric Proca (EGP) Anti-de Sitter (AdS) compact objects, which arise from metric-Palatini gravity extended by…Gulzoda Rakhimova, Beyhan Puliçe, Elham Ghorani et al.·Mar 30, 2026SaveLearn
The Hodograph Transform Between Thermodynamics and RelativityIn the contact-geometric approach to general relativity, the sky of an event - namely, the set of all incoming light rays - forms a Legendrian submanifold of the spherical cotangent bundle of a…Leonid Polterovich·Mar 30, 2026SaveLearn
Self-Reflection in a Moving MirrorWe present an analytic flat-spacetime accelerating boundary analog of Hawking-type emission that possesses infinite asymptotic acceleration (and radial acceleration in the black hole analog) but…Michael R. R. Good, Eric V. Linder·Mar 30, 2026SaveLearn
Gravitational wave polarization modes and stability analysis in Weyl geometry gravityWe investigate the gravitational wave polarization modes and stability in Weyl geometry gravity within a Minkowski background. Our results indicate that the tensor sector consists of two standard…Yu-Zhi Fan, Xiao-Bin Lai, Yu-Qi Dong et al.·Mar 30, 2026SaveLearn
Detecting Black hole surrounded by perfect fluid dark matter in Kalb-Ramond fields using quasinormal modesThis paper investigates the characteristics of quasinormal modes (QNMs) of static, spherically symmetric black holes under the combined influence of spontaneous Lorentz symmetry breaking (LSB)…Zongyuan Qin, Taiyang Zhang, Qian Feng et al.·Mar 30, 2026SaveLearn
Secular evolution of orbital parameters for general bound orbits in Kerr spacetimeWe analytically derive the secular changes of the orbital parameters, i.e., energy, angular momentum, and Carter constant, for general bound orbits in Kerr spacetime, at leading order in the mass…Norichika Sago, Ryuichi Fujita, Soichiro Isoyama et al.·Mar 30, 2026SaveLearn
Gravitational lensing and observational features of a dynamic black holeIn this work, we investigate the gravitational lensing effects and the dynamic evolution of the shadow of Vaidya black holes by employing backward ray-tracing techniques. Within the celestial sphere…Ke-Jian He, Guo-Ping Li, Li-Fang Li et al.·Mar 29, 2026SaveLearn
A Minimal and Stable Vacuum Bounce in Exponential f(R) GravityWe investigate the realization of a nonsingular cosmological bounce in metric f(R) gravity using a controlled exponential deformation of the Starobinsky R2 model. Adopting a smooth…G. G. L. Nashed, A. Eid·Mar 29, 2026SaveLearn
q-Deformed Quantum Mechanics and the Thermodynamics of Black Hole/White Hole Spectral pairIn this work, we investigate the thermodynamics of Schwarzschild black and white holes within a q-deformed Wheeler--DeWitt framework. By introducing a q-deformed Heisenberg--Weyl algebra at a…S. Jalalzadeh, R. Jalalzadeh, H. Moradpour·Mar 29, 2026SaveLearn
Optimized numerical evolution of perturbations across sharp background trajectory turns in multifield inflationFeatures in the primordial power spectrum require numerical methods that are both accurate and scalable across the wide class of multifield inflationary models that produce them. Sharp turns in the…Guillermo F. Quispe Peña, Johor D. Peñalba Quispitupa, José T. Gálvez Ghersi·Mar 28, 2026SaveLearn
Quantizing the exterior region of a Schwarzschild-AdS black hole leads to a resolution of the information paradox on a quantum levelWe quantize the exterior region of a Schwarzschild-AdS black hole using our model of quantum gravity. The resulting hyperbolic equation is solved by products of temporal eigenfunctions wi, the…Claus Gerhardt·Mar 28, 2026SaveLearn
The point-particle-limit effective-source approach for computing gravitational self-force in the Lorenz gaugeThe traditional effective-source method is hampered by complex analytical expressions and the inherent smoothness limit, which incur high computational costs and complicate implementation. To…Chao Zhang, Yungui Gong, Xuchen Lu et al.·Mar 28, 2026SaveLearn
Bohmian singularity resolution and quantum relaxation in Bianchi type-I quantum cosmologyWe investigate cosmological singularity resolution and relaxation dynamics within the Bohmian mechanics via the plane-symmetric Bianchi type-I minisuperspace model in the Wheeler-DeWitt framework of…Vishal, Malay K. Nandy·Mar 28, 2026SaveLearn
Quantum gravitodiamagnetic interactionIn the framework of linearized quantum gravity, we investigate the quantum gravitational interaction induced by the gravitodiamagnetic coupling of two massive objects to vacuum fluctuations of the…Di Hao, Jiawei Hu, Hongwei Yu·Mar 28, 2026SaveLearn
Dynamical tidal response of neutron stars as a probe of dense-matter propertiesDynamical tidal deformations play a crucial role in the gravitational waves emitted by binary neutron star systems during their late inspiral. In this work, we systematically explore how relativistic…Abhishek Hegade K. R., Yumu Yang, Mauricio Hippert et al.·Mar 27, 2026SaveLearn
Probing Unruh Effect from Enhanced DecoherenceWe investigate the decoherence of an Unruh-DeWitt detector coupled to scalar, electromagnetic, and spinor fields in four-dimensional Minkowski spacetime. By employing the Schwinger-Keldysh influence…Ran Li, Zhong-Xiao Man, Jin Wang·Mar 27, 2026SaveLearn
Memory effect for generalized modes in pp-waves spacetimeThe memory effect of test particles interacting with pp-wave Gaussian pulses is investigated for polarization modes beyond the standard quadrupolar + and × states. Massive geodesic equations…F. L. Carneiro, H. P. de Carvalho, M. P. Lobo et al.·Mar 27, 2026SaveLearn
Scattering and absorption sections by an improved Schwarzschild black holeIn this contribution, we investigate the scattering and absorption sections of the improved Schwarzschild black hole. The differential scattering section is analysed using three complementary…Omar Pedraza, L. A. López, L. O. Téllez Tovar·Mar 27, 2026SaveLearn
The High-Mass-Ratio Challenge in Gravitational Waveform ModellingBinary black hole (BBH) mergers detected via gravitational waves are addressing key open questions in astrophysics, cosmology, and fundamental physics. Our scientific conclusions rely on extracting…Parthapratim Mahapatra, Jonathan E. Thompson, Edward Fauchon-Jones et al.·Mar 27, 2026SaveLearn
Simulation-based Inference towards Gravitational-wave waveform systematics in Intermediate-Mass Binary Black HolesParameter estimation for gravitational-wave signals is computationally demanding due to the high dimensionality of the parameter space and the cost of repeated waveform generation in traditional…Sama Al-Shammari, Alexandre Göttel, Masaki Iwaya et al.·Mar 27, 2026SaveLearn
Noncommutative geometry-inspired wormholes supported by quasi-de Sitter and Chaplygin-like equations of stateWe construct static, spherically symmetric wormhole solutions with a nontrivial redshift function, inspired by noncommutative geometry, in which point sources are replaced by Gaussian smearing of…D. Batic, D. Dutykh, M. Essa Sukaiti·Mar 27, 2026SaveLearn