2489 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 the thin-disk imaging of Kerr black holes with synchronized parity-odd scalar hair, revealing that increasing hair strength distorts the photon ring and shadow into complex features like disconnected components, crescents, and nested rings, particularly at edge-on viewing angles.
This paper proposes a new method to witness the quantum nature of gravity by using simple position correlation measurements of spatially localized mass superpositions, thereby eliminating the need for complex spin-based interferometry while identifying specific squeezing requirements as the key condition for viability.
This paper provides a rigorous analysis of the generalized Jang equation for asymptotically anti-de Sitter initial data sets in dimensions , establishing the existence and properties of solutions under general asymptotic conditions and discussing their potential applications to spacetime positive mass theorems.
This paper proposes a novel, robust timing model for pulsars orbiting supermassive black holes that incorporates full relativistic photon travel time calculations, demonstrating that lower-order post-Newtonian approximations fail in strong-field regimes and that precise timing residuals offer powerful constraints on binary and intrinsic parameters for future Galactic Center observations.
This paper investigates whether the holographic quark-antiquark potential can detect a higher-order phase transition between planar charged Reissner-Nordström-AdS and hairy black holes, concluding that while the potential values coincide at the transition point, one phase consistently dominates the other, a behavior also observed in higher-dimensional probes like holographic entanglement entropy.
This paper promotes the global symmetry of the Schwarzian derivative to a local gauge symmetry by constructing a gauge-invariant analogue of the Schwarzian derivative through a composite field method, thereby enabling the study of topological sectors and locally invariant couplings in two-dimensional gravity contexts.
This paper validates a compact-binary mass-shell model by demonstrating that its variational predictions for radiated energy align with observational data from 38 out of 45 gravitational wave events within reported uncertainties, confirming the model's ability to capture leading-order energy scaling while highlighting specific areas for future refinement.
This paper proposes a framework associating generalized entanglement wedges in arbitrary spacetimes with algebras in a fundamental holographic description, suggesting that algebraic entropy inequalities naturally explain the inclusion monotonicity and strong subadditivity of these wedges while offering a generalized Ryu-Takayanagi formula.
This paper strengthens the case for an ultraviolet fixed point in asymptotically safe dilaton quantum gravity using gauge invariant flow equations, demonstrating that the resulting scaling solution can simultaneously describe early-universe inflation and late-time dynamical dark energy.
This paper demonstrates that the evolution operator of Polchinski's Exact Renormalization Group equation possesses an $SO(1, d+1)$ symmetry for any form of the UV cutoff function, with the special conformal generators adapting to the specific cutoff, thereby establishing a universal holographic symmetry structure for both interaction and full Wilson actions.