3256 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 paper presents a unified mathematical framework using Gauss hypergeometric connection formulas to derive explicit quantization functions for radial boundary value problems, enabling the algebraic calculation of exact quasinormal residues and the identification of double-pole conditions without integral evaluation.
This paper presents a radiative post-processing framework for relativistic hydrodynamics simulations of black hole-disk collisions, revealing that the resulting luminous flares are primarily driven by super-Eddington accretion onto the secondary black hole rather than ejecta cooling, with their brightness and spectral evolution strongly dependent on collision velocity and disk density.
This paper interprets multiway gravitational junctions in AdS as interfaces between holographic conformal theories, demonstrating that their linearized scattering is governed by universal quantum maps factorizing into a tension-dependent scattering matrix and Virasoro automorphisms driven by stringy modes.
This paper addresses the unresolved consistency of Dirac quantization for spherically symmetric gravity coupled to scalar matter in Loop Quantum Gravity by analyzing a gauge-fixed approach with a physical clock, demonstrating that it successfully reproduces established vacuum black hole quantization results across the entire outer region beyond previous asymptotic approximations.
This paper reviews the historical decline and subsequent revival of Weyl gauge theory, presenting it as a unique, anomaly-free spacetime gauge theory with a physical gauge boson that naturally generates the Einstein-Hilbert action and a positive cosmological constant through spontaneous symmetry breaking, while also introducing a more fundamental Weyl-Dirac-Born-Infeld action that eliminates the need for UV regularization.
This paper derives exact analytic formulas that express the mass, distance, rotation parameter, and the modified gravity coupling parameter of Schwarzschild-MOG and Kerr-MOG black holes directly in terms of observable accretion disk quantities, thereby providing a method to empirically test deviations from standard general relativity.
This paper establishes the uniqueness of the known ghost-free multi-spin-2 theory by proving that its specific coupling structure is the only possible configuration for genuine multi-field interactions involving more than two vielbeins, while also demonstrating that more general interactions remain ghost-free if they are constructed from tree-structured graphs of these fundamental potentials.
This paper investigates the vacuum-induced current density of a charged scalar field in a -dimensional cosmic dispiration spacetime threaded by a magnetic flux, demonstrating that the helical geometry of the defect generates both azimuthal and axial current components that are periodic in the magnetic flux and significantly influenced by the screw dislocation parameter.
This study quantifies how non-Gaussian transient noise glitches in LIGO detectors bias the parameter estimation of compact binary coalescence signals, revealing significant distortions in mass, spin, and sky position—particularly when glitches occur shortly before the merger—and establishing time-separation thresholds to identify when glitch subtraction is necessary for unbiased results.
This paper numerically investigates the shadow and polarization images of rotating Einstein-Gauss-Bonnet black holes using backward ray-tracing, demonstrating that while the GB coupling constant and spin parameter affect the inner shadow's size and shape differently, the synergistic analysis of both image types offers a more powerful observational tool for probing spacetime structures than either method alone.