3256 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 employs Duan's topological current theory and a novel complex residue method to demonstrate that Kerr-Sen AdS black holes possess a global topological charge of across three distinct thermodynamic phases, a topological class invariant under dilaton variations but significantly shaped by the rotation parameter.
This paper investigates the frequency-dependent dynamical tidal response of regular black holes (Bardeen, Hayward, and Fan-Wang) by solving perturbation equations and employing a shell effective field theory framework, revealing that dynamical Love numbers exhibit strong dispersion and resonant features that encode near-horizon and interior structural information inaccessible in the static limit.
This paper proposes a simple spin-measurement technique for M87* that utilizes high-resolution astrometry to detect the displacement between the direct image and the first lensed photon ring sub-image, demonstrating that a relative resolution of can constrain the black hole's spin to within 9–26% without relying on geometric modeling of the emission.
By modeling a collapsing matter shell within an effective quantum field theory where Planck length fluctuations are retained until the final limit, the paper demonstrates that finite particle production prevents the scalar expansion parameters from vanishing, thereby suppressing the formation of an apparent horizon and suggesting that astrophysical black holes may be regular, horizonless compact objects.
This paper demonstrates that a transient departure from standard radiation domination in minimally coupled teleparallel cosmology can exponentially enhance primordial black hole formation and produce asteroid-mass black holes that account for all dark matter, without requiring ad hoc modifications to the radiation sector.
This study utilizes numerical relativity simulations and general relativistic ray-tracing to demonstrate that linear perturbation theory predicts large-scale weak lensing convergence within 3–30% accuracy across various redshifts, with discrepancies generally falling below the level of cosmic variance.
This paper derives and analyzes curvature-induced corrections to the Yukawa potential within static, spherically symmetric Tolman metrics (specifically solutions IV and VI), demonstrating that these corrections preserve radial symmetry in the local inertial frame and yield minute energy shifts relevant to nuclear interactions in compact stellar objects like neutron stars.
This paper computes the one-loop contribution to the semiclassical partition function of static, charged near-extremal black holes in five-dimensional Einstein-Gauss-Bonnet gravity, revealing that tensor, vector, and gauge fluctuations induce universal logarithmic corrections to the entropy with a low-temperature scaling of .
This paper proposes that averaging over a stochastic gravitational wave background unifies classical and quantum velocities into a complex velocity field, revealing a topological quantization condition with potential observable signatures in atom interferometry and cosmology.
This paper investigates how a background magnetic field modifies the critical behavior and fine structure of photon rings around a rotating black hole in Kerr-Bertotti-Robinson spacetime by analyzing unstable spherical orbits and deriving key parameters that characterize radial compression, azimuthal advancement, and time delay for various observer configurations.