Shifted-geodesic approximation for spinning-body gravitational wave fluxesWe present a shifted-geodesic framework for computing gravitational-wave fluxes from spinning test bodies moving on bound orbits of Kerr black holes. The method provides a simple and efficient means…Lisa V. Drummond, Scott A. Hughes, Viktor Skoupý et al.·Mar 12, 2026SaveLearn
Topological field theory plus local Lorentz symmetry is gravityFour-dimensional gravity admits many equivalent formulations - metric, Einstein-Cartan, teleparallel, McDowell-Mansouri, among others - each offering distinct advantages, particularly, in view of…Maïté Dupuis, Florian Girelli, Oleksandra Hrytseniak et al.·Mar 12, 2026SaveLearn
Assessing the robustness of amortized simulation-based inference to transient noise in gravitational-wave ringdownsGravitational waves (GW) emitted by binary systems allow us to perform precision tests of general relativity in the strong field regime. Ringdown signals allow for probing black hole mass and spin…Song-Tao Liu, Tian-Yang Sun, Yu-Xin Wang et al.·Mar 12, 2026SaveLearn
Screened Simpson-Visser Black Holes with Asymptotically de-Sitter CoreIn this work, we introduce a screened Simpson-Visser regular solution and perform a comprehensive study of its physical and observational properties. We begin by analyzing the thermodynamic behavior…Faizuddin Ahmed, Ahmad Al-Badawi, Edilberto O. Silva·Mar 12, 2026SaveLearn
A Brief Study of Dark Energy Accretion onto Schwarzschild Black Hole : Biswas-Roy-Biswas Type Redshift Parameterization is ChosenIn this letter, we have considered accretion of a particular type of Dark Energy model onto a Schwarzschild type black hole. Before using the model, the free parameters of the Dark Energy model have…Subhajit Pal, Sukanya Dutta, Ritabrata Biswas·Mar 12, 2026SaveLearn
BBN to Late-Time Acceleration in f(T,Lm) GravityWe present, to our knowledge, the first systematic study of early-late cosmic evolution and acceleration in the framework of f(T,Lm) gravity, an extension of teleparallel theories…Sai Swagat Mishra, Suchita Patel, P. K. Sahoo·Mar 12, 2026SaveLearn
Shadow of Bonanno-Reuter Black Hole in Plasma Medium: Insights from EHT Sgr A* ObservationsWe investigate the properties of black hole shadows in the renormalization group (RG) improved Bonanno-Reuter spacetime, incorporating quantum gravitational corrections via the scale-dependent…Shubham Kala·Mar 12, 2026SaveLearn
Conventional vs. modified GTD metrics: Survival of modified GTD metrics in AdS spacetime and thermodynamic ensemblesThermodynamic geometry provides a powerful framework for probing the microscopic structure of thermodynamic systems. Among its formulations, Geometrothermodynamics (GTD) has been widely applied to…Gunindra Krishna Mahanta·Mar 12, 2026SaveLearn
Spherically-symmetrical vacuum solution in Freund-Nambu scalar-tensor gravityScalar--tensor theories of gravity provide a natural extension of general relativity and may predict naked singularities as alternative compact objects. In this work, we investigate a novel exact…Akbar Davlataliev, Bobur Turimov, Bobomurat Ahmedov et al.·Mar 12, 2026SaveLearn
An analogue first law for general closed marginally trapped surfacesWe formulate an analogue transverse first law for general closed marginally trapped surfaces in arbitrary spacetimes. The construction is intrinsically quasi-local and is attached directly to an…Ramon Torres·Mar 12, 2026SaveLearn
Absorption and scattering of massless scalar waves by Frolov black holesWe study the absorption and scattering of massless scalar waves by Frolov black holes, a regular deformation of the Reissner--Nordström geometry. A null-geodesic analysis provides the photon-sphere…Jining Tang, Yang Huang, Hongsheng Zhang·Mar 12, 2026SaveLearn
A class of decelerating inhomogeneous cosmological models giving rise to accelerating FLRW universes at large scalesIn this manuscript, we develop a class of inhomogeneous relativistic cosmological models with the following properties: (i) They contain cosmological observers to whom the spatial geometry and the…Leandro G. Gomes·Mar 11, 2026SaveLearn
Naturally Light DistortionIn the most general formulation of gravity, the metric and connection are independent degrees of freedom, and the connection may include torsion and non-metricity (or distortion, collectively)…Kazunori Nakayama·Mar 11, 2026SaveLearn
Polymerized spacetime dynamics with multifield source: Unraveling the pre-inflationary UniverseWe study a multifield model in loop quantum cosmology for a maximally symmetric spacetime governed by the Einstein-Hilbert action minimally coupled to scalar fields. Using a Legendre transformation,…Divya Gupta, Manabendra Sharma, Gustavo S. Vicente et al.·Mar 11, 2026SaveLearn
Temperature Fluctuations and quantum corrections near Black Hole HorizonSpatially varying near-horizon fluctuations of temperature of a Schwarzschild Black Hole is considered within the Euclidean Gravity approach. We present evidence that suggests that such fluctuations…Anamika Avinash Pathak, Swastik Bhattacharya·Mar 11, 2026SaveLearn
Dyonic ModMax Black Holes in Kalb-Ramond gravity with a Cloud of Strings as SourceWe investigate the geodesic structure, shadow, thermodynamics, and Hawking radiation from a dyonic ModMax black hole in Kalb-Ramond gravity with a cloud of strings. The combined presence of ModMax…Faizuddin Ahmed, Edilberto O. Silva·Mar 11, 2026SaveLearn
Reduced phase space induced decay conditionsThe definition of the phase space of field theories in presence of boundaries of Cauchy surfaces requires a choice of boundary conditions or decay behaviour of those fields. Often these conditions…Thomas Thiemann·Mar 11, 2026SaveLearn
Holographic dark energy from a new two-parameter entropic functionalWe formulate an extended holographic dark energy scenario based on a recently proposed two-parameter generalized entropic functional. Unlike constructions that phenomenologically impose modified…G. G. Luciano, E. N. Saridakis·Mar 11, 2026SaveLearn
Production of Gravitational Waves in the Early Universe From turbulence triggered by first-order phase transitionsThis project is aimed at studying the first-order phase transitions, that is presumed to have ensued in the early universe, and its consequences on the primordial gravitational waves. The effects of…Yashmitha Kumaran·Mar 11, 2026SaveLearn
Energy extraction-driven instability and horizon formation in Kerr-Newman naked singularities and their limiting casesEnergy extraction from compact objects has been a central topic in general relativity since the introduction of the Penrose process. In this work we present a unified analysis of rotational and…Vishva Patel·Mar 11, 2026SaveLearn
The moduli space of dynamical spherically symmetric black hole spacetimes and the extremal thresholdIn this paper, we give a complete description of the black hole threshold, locally near the Reissner-Nordström family, in the infinite-dimensional moduli space M of dynamical spherically…Yannis Angelopoulos, Christoph Kehle, Ryan Unger·Mar 11, 2026SaveLearn
Quantum Dynamics of the Schwarzschild Interior in Ashtekar-Barbero Variables with Minimal Length EffectsWe study the quantum dynamics of the Schwarzschild interior in the Ashtekar-Barbero formulation, focusing on the fate of the classical singularity and the annihilation-to-nothing scenario. Using…Takamasa Kanai·Mar 11, 2026SaveLearn
Adiabatic evolution of asymmetric binaries on generic orbits with new fundamental fields I: characterization of gravitational wave fluxesWe investigate the dynamics of asymmetric binaries in extensions of General Relativity featuring a massless scalar field non-minimally coupled to gravity, focusing on the interplay between…Sara Gliorio, Matteo Della Rocca, Susanna Barsanti et al.·Mar 10, 2026SaveLearn
Kerr Black Hole Ringdown in Effective Field TheoryWe develop a systematic effective field theory calculation of the quasinormal modes of Kerr black holes valid for arbitrary spin, providing model-independent corrections to their ringdown spectrum…William L. Boyce, Jorge E. Santos·Mar 10, 2026SaveLearn
Cosmological Spacetimes with Sign-Changing Spatial Curvature and Topological TransitionsObservational evidence, together with practical computations and modeling, supports a Euclidean spatial sector in the current cosmological model based on the FLRW metric. This, however, would imply…Gerardo García-Moreno, Bert Janssen, Alejandro Jiménez Cano et al.·Mar 10, 2026SaveLearn