3225 papers
Quantum gravity represents the frontier where the very large meets the very small, attempting to unify Einstein's theory of gravity with the strange rules of quantum mechanics. This field explores the fundamental fabric of spacetime, seeking to understand how the universe behaves at its most extreme scales, from the heart of black holes to the moment of the Big Bang. Because these concepts often involve complex mathematics, they can feel distant to non-specialists, yet they hold the key to a complete picture of physical reality.
At Gist.Science, we bridge this gap by processing every new preprint in this category directly from arXiv. Our team provides both plain-language explanations and detailed technical summaries for each paper, ensuring that groundbreaking research is accessible to everyone, from curious students to seasoned researchers. Below are the latest papers in quantum gravity, offering fresh insights into the nature of our cosmos.
This study presents a comprehensive analysis correlating the highest-energy neutrino event KM3-230213A with gamma-ray bursts by explicitly accounting for angular uncertainties and computing Lorentz invariance violation scales to identify a broader set of potential associations.
This paper revisits the thermodynamics of Hayward black holes in asymptotic flat spacetime to derive a novel entropy formula with logarithmic corrections, analyze their phase structure, and establish bounds on the final mass following the head-on merger of two equal-mass black holes while ensuring the validity of the second law of thermodynamics.
This paper demonstrates that the analytic part of the stress-energy tensor's asymptotic expansion at thermodynamic equilibrium in curved spacetime is universal across various geometries and quantum field theories, depending solely on covariant derivatives of the Killing four-temperature and metric tensor, while non-universal contributions arise from non-analytic terms linked to specific boundary conditions or global spacetime properties.
This paper classifies singular solutions of the Tolman-Oppenheimer-Volkoff equation with a cosmological constant by integrating from an outer boundary, revealing that singular configurations dominate the solution space, possess a universal geometric structure yielding bounded-acceleration complete spacetimes, and exhibit four distinct classes with cosmological horizons when .
This paper presents a validated framework for generating realistic virtual mirror maps by combining Zernike decomposition and spatial frequency analysis with metrology data from Advanced Virgo, enabling systematic optical simulations to assess surface quality specifications for the future Einstein Telescope.
This paper investigates charged black hole solutions in non-linear electrodynamics, demonstrating that their non-monotonic lapse functions enable stable light-rings and static near-horizon observers, which in turn generate additional, longer-lived quasinormal mode branches despite being screened from distant observers.
This paper demonstrates that merons, key topological solitons in Yang-Mills theory, are universal across a broad class of non-Abelian gauge theories and, when including gravitational backreaction, yield regular black hole and Euclidean wormhole solutions that resolve singularities while preserving intrinsic effects like spin from isospin.
This paper demonstrates that electrically charged, rotating Kerr-Newman black holes in gravity possess hidden symmetries that allow for the separation of the Hamilton-Jacobi equation and retain the universal gyromagnetic ratio of , thereby confirming the robustness of these fundamental properties within modified gravity theories.
This paper employs variational Monte Carlo with neural quantum states to characterize physical states of 4D Euclidean loop quantum gravity on a complete graph, revealing distinct solution families for the Hamiltonian constraint and its adjoint that correspond to the Ashtekar-Lewandowski and Dittrich-Geiller vacua, respectively, while also providing insights into their relationship with continuum solutions.
This paper develops a systematic worldline effective field theory framework to compute gravitational Sommerfeld factors for binary inspirals with tidal effects, deriving closed-form expressions and analytically solving for the magnitude and phase of the factor up to while establishing a new renormalization group equation for radiative multipole moments to improve waveform resummation.