3099 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 fast, accurate, and fully differentiable neural network surrogate for the NRSur7dq4 precessing binary black hole waveform model that achieves NR-faithful precision while offering significant speedups on GPUs and enabling gradient-based inference methods.
This paper reconstructs and generalizes the perspective-neutral framework for quantum reference frames by extending the concept of frames from tensor factor subsystems to covariant quantum instruments, thereby providing a resource-theoretic foundation that unifies operational quantum information with internal reference frame research to explain phenomena like particle symmetrization and relational dynamics.
This paper constructs and analyzes the coupled gravitational and electromagnetic response of a magnetically supported generalized Hayward black hole in nonlinear electrodynamics, computing its quasinormal spectrum, optical characteristics, and absorption properties to demonstrate consistent diagnostics of the underlying nonlinear operator across various physical regimes.
This paper argues that a fundamental rotational Unruh effect does not exist, attributing previous claims of its existence to the improper application of linear Unruh effect derivations via Lorentz boosts in reference frames that violate cylindrical symmetry and Poincaré invariance.
This paper identifies and proposes a numerical procedure to eliminate nonphysical infrared oscillations in gravitational wave spectra from domain wall simulations, ensuring accurate predictions of the infrared slope critical for observational tests like NANOGrav while demonstrating that naive long-time extensions using the PRS prescription yield incorrect results.
This paper establishes a consistent Kerr/CFT-type holographic duality for the four-dimensional Kerr-MOG black hole by demonstrating that thermodynamic, monodromy, and soft-hair approaches yield matching CFT parameters, allowing the Cardy formula to reproduce the Bekenstein-Hawking entropy and confirming a hidden conformal symmetry in the near-region scalar wave dynamics.
This paper proposes a quantum electrodynamics model for massive dyons based on a gauge group that abandons the Dirac quantization condition, and rigorously demonstrates its quantum consistency by proving it is free of anomalies and multiplicatively renormalizable at all orders using BRS algebraic renormalization and the BPHZL procedure.
This paper utilizes recent gravitational wave observations confirming the Hawking Area Theorem to impose stringent constraints on corrections to the Bekenstein-Hawking entropy formula, thereby limiting parameters in classical gravity and restricting the spin and species count of Beyond Standard Model particles in quantum gravity models.
This paper derives a systematic strong deflection limit expansion for the spin precession angle of particles in static, spherically symmetric spacetimes, establishing a universal relation to the deflection angle and providing analytic coefficients for Schwarzschild and Reissner-Nordström cases that confirm the charge-independent spin-flip of massless particles while revealing distinct charge dependence for massive ones.
This paper investigates a quadratic generalized-uncertainty-principle deformation of the FLRW minisuperspace Poisson algebra, demonstrating that its first-order correction to the Friedmann equation can be constrained using late-time cosmological data to yield a negative deformation parameter () at 68% credibility.