3230 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 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.
This paper demonstrates that time delay observables of higher-order images from transient sources can break degeneracies in black hole shadow imaging by uniquely identifying spacetimes with multiple photon spheres through distinctive signatures like minimum travel time, minimum angular deflection, and a characteristic triplet structure.
This paper derives a closed formula for computing static post-Newtonian corrections to two-body gravitational dynamics at any odd order using a correlation function framework and symmetry, which is applied to successfully calculate the seventh-order potential and confirm its agreement with diagrammatic factorization theorem results.
This paper presents a family of spherically symmetric black brane solutions in a model with multicomponent anisotropic fluid, governed by moduli functions satisfying non-linear differential equations, and demonstrates that specific subclasses with horizons arise when the equation of state parameters correspond to semisimple Lie algebras, thereby generalizing known solutions in supergravity and higher-dimensional gravity.
This paper analyzes phenomenological templates for gravitational wave echoes from exotic compact objects to demonstrate that current and future interferometers can accurately estimate their parameters, potentially confirming horizonless geometries and probing strong-field gravity.
This paper investigates the numerical stability of an algebraic-hyperbolic formulation of the Einstein constraint equations for cosmological space-times using a pseudo-spectral method, revealing that while the scheme suffers from unavoidable instabilities near FLRW space-times, it can be stable for Gowdy space-times and specific subclasses, offering a potential new approach for computing inhomogeneous initial data.