3285 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 establishes synthetic lower Ricci curvature bounds for generalized cones over metric spaces in both Riemannian and Lorentzian signatures by proving that such cones satisfy measure contraction properties and that their fibers inherit curvature-dimension conditions, utilizing a novel two-dimensional localization technique to derive applications like splitting theorems and a new definition for lower curvature bounds.
This paper proposes and validates a new CDM cosmological model featuring a subdominant "matter with pressure" fluid that resolves the Hubble tension by modifying the sound horizon and expansion rate without relying on early dark energy, showing a statistical preference over the standard CDM model.
This paper extends the -symmetry analysis of supersymmetric D-brane probes in attractors to include stationary, non-static worldlines with angular momentum, revealing new -BPS configurations that saturate a generalized energy bound and enrich the spectrum of supersymmetric states relevant to black hole microstate counting and holography.
This paper derives a gauge-invariant local classical action for Lie-Poisson electrodynamics that resolves the longstanding challenge of formulating gauge theory on -Minkowski space-time by yielding deformed Maxwell equations as Euler-Lagrange equations for any Lie-algebra-type noncommutativity.
This paper presents the first exact analytical solution to the DeWitt-Brehme-Hobbs equation for a charged mass interacting with copropagating electromagnetic and gravitational plane waves, demonstrating how gravitational waves can qualitatively alter electromagnetic radiation-reaction effects.
This paper demonstrates that black holes in the Modified Generalized Chaplygin Gas model remain stable under scalar and electromagnetic perturbations, with their distinct quasinormal mode spectra offering a potential observational avenue to constrain unified dark sector scenarios through gravitational-wave ringdown signals.
Dedicated to the memory of Dharam Ahluwalia, this paper provides a concise overview of the key characteristics of Carroll spinors.
This paper introduces the first public GPU-accelerated framework for X-ray pulse profile modeling that achieves high-fidelity accuracy with massive speedups (2–5 ms per evaluation), thereby resolving the accuracy-speed bottleneck in Bayesian inference and enabling the exploration of previously intractable hotspot geometries and equation-of-state constraints.
This study demonstrates that stochastic kicks in ultra-slow-roll inflation models create spiky compaction profiles that can enhance primordial black hole abundance by up to 36 orders of magnitude and significantly shift their mass function, though convergence issues necessitate further investigation into collapse criteria for such profiles.
This paper demonstrates that cross-correlating dark sirens from third-generation gravitational-wave detectors with the China Space Station Survey Telescope's galaxy survey can constrain the Hubble constant and matter density parameter to precisions of 1.04% and 2.04%, respectively, while also measuring the gravitational-wave clustering bias.