3826 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 introduces a static, horizonless, finite-mass two-throat wormhole model that unifies the study of global light ring phase transitions, branch-resolved strong gravitational lensing, and resonant scalar wave transmission within a single consistent spacetime geometry.
This paper analytically solves the non-Hermitian -symmetric Klein--Gordon equation for scalar fields in a magnetized cosmic string spacetime with complex interactions, demonstrating that such symmetrization imposes an upper limit on the allowed energy spectrum, a feature absent in the corresponding Hermitian cases.
This paper establishes that static, regular black holes in Horndeski theories are generically obstructed by instabilities or no-hair theorems, proving that analytic configurations reduce to singular Schwarzschild solutions while the only marginal nonanalytic completion (involving scalar-Gauss-Bonnet couplings) still fails to produce regular black holes.
This paper investigates the five-dimensional Schwarzschild-Tangherlini spacetime by analyzing geodesic scattering and orbital stability, deriving a massless scalar perturbation equation as a Reduced Confluent Heun equation, and developing an extended Mano-Suzuki-Takasugi formalism validated against quantum Seiberg-Witten results to compute energy flux and quasinormal modes.
This paper develops a covariant reconstruction framework in teleparallel gravity to derive specific functional forms of the gravitational Lagrangian for Kantowski--Sachs geometries sourced by Chaplygin and polytropic fluids, utilizing nonlinear matter conservation laws to reverse the standard reconstruction strategy and identify viable anisotropic cosmological and black-hole-interior branches.
This paper presents a comprehensive search for strongly lensed binary black hole gravitational wave events across the O1–O4a observing runs using an enhanced Bayesian pipeline and simulations, finding no evidence of lensing to establish a 90% upper bound of 1.4% on the lensing fraction while highlighting the importance of cross-catalog analysis and forecasting future detection probabilities.
By analyzing the generalized entropy of an evaporating rotating regular black hole, the study demonstrates that the mass cannot drop below a finite limit () where the correction term vanishes, thereby predicting the formation of a stable remnant in the final stage of evaporation.
Using data from the first part of LIGO-Virgo-KAGRA's fourth observing run, this study employs directional radiometer techniques to find no evidence of persistent gravitational-wave signals, thereby establishing the most stringent constraints to date on the strain amplitude and flux of narrowband, broadband, and extended sources across the sky.
This paper constructs the linearized superconformal action for the Weyl supermultiplet using the harmonic superspace approach with unconstrained analytic potentials and "half-analyticity" conditions, demonstrating its structural similarity to the Maxwell action and proposing a path toward a complete nonlinear formulation.
This paper investigates black hole scalarization induced by a charged scalar field in asymptotic AdS spacetimes with three distinct horizon topologies within the extended phase space, revealing that scalarization occurs at low temperatures for all cases, exhibits unique high-temperature domains and complex phase transitions in the spherical topology, and undergoes a pressure-driven transition from first-order to "cave-of-wind" style condensation across all geometries.