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 demonstrates that using the HETDEX spectroscopic survey to obtain precise redshifts for both rare "golden" and common "silver" dark sirens from the upgraded LIGO network could enable a few-percent measurement of the Hubble constant, offering a critical independent path to resolving the Hubble tension.
This paper proposes a holographic definition of thermodynamic pressure and volume for black holes based on quasi-local gravitational thermodynamics, demonstrating that this framework allows for a consistent definition of extensivity and a large-system limit where both Schwarzschild and Anti-de-Sitter black holes transition from non-extensive to extensive behavior.
This study utilizes the relativistic orbit of the S2 star and Event Horizon Telescope shadow constraints to test various spacetime geometries around Sgr A*, finding that current data cannot statistically distinguish between Schwarzschild, Reissner-Nordström, and Bardeen black holes while providing limits on alternative parameters and identifying targets for future high-precision observations.
This paper presents a relativistic framework for extended spherically symmetric bodies that reproduces standard General Relativity tests while predicting weak, distance-dependent corrections to the external gravitational field based on internal mass distribution, which significantly affect light-velocity structures near neutron stars and measurable light travel times for Earth-orbiting satellites.
This paper investigates the thermodynamic properties, topological classification, and astrophysical signatures—including photon polarization effects, black hole shadows, and accretion disk emissions—of charged black holes modified by Weyl corrections to spacetime curvature.
This paper introduces the Targeted Detectability Range (TDR), a computationally efficient method that leverages external messenger data—such as sky localization and mass constraints—to rapidly estimate the gravitational-wave detectability of compact binary coalescences, a framework validated against LIGO-Virgo-KAGRA observations of gamma-ray bursts.
This paper demonstrates that coupling Ostrogradsky ghosts to dissipative baths within a non-equilibrium Keldysh-Lindblad framework can stabilize these unstable modes through a dissipative phase transition, effectively suppressing ghost excitations via either dynamically generated effective masses or strong overdamping.
This paper presents the maximal analytic extension of a Schwarzschild-like black hole solution in Lorentz gauge theory, demonstrating that while its causal topology mirrors the standard Schwarzschild spacetime, its geometric properties such as horizon scale and surface gravity are uniquely determined by the parameter .
This paper investigates fermion localization in a five-dimensional braneworld within modified teleparallel gravity , demonstrating that non-minimal coupling to torsional invariants, particularly the teleparallel Gauss-Bonnet term, significantly alters effective potentials to enable the localization of a single chiral zero-mode and the emergence of resonant states, while information-theoretic measures confirm that these torsional modifications induce stronger confinement and nontrivial information redistribution.
This paper resolves a question by Chernov, Kinlaw, and Sadykov by proving that globally hyperbolic spacetimes can be refocusing without being strongly refocusing, while also demonstrating that Legendrian refocusing spacetimes admit strongly refocusing metrics.