3119 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 uses the multi-messenger event GW170817 to test General Relativity by applying the parameterized post-Einsteinian framework to search for scalar polarization modes, demonstrating that incorporating electromagnetic polarization angle constraints significantly improves the bounds on non-GR parameters.
This paper demonstrates that the spin locations of local minima in the frequency gaps between adjacent Kerr black hole overtones drift depending on the specific pair of modes being compared, a phenomenon explained by treating the minimum as a local geometric turning event of the complex separation vector.
This paper constructs a unified three-dimensional non-relativistic Chern-Simons supergravity theory with curvature and torsion by applying the semigroup expansion method to an supersymmetric Mielke–Baekler algebra, providing a consistent framework that interpolates between various models like extended Bargmann and Newton–Hooke gravity.
The paper introduces **SWIM** (Stochastic Warm Inflation Module), a C++/Python-based numerical platform that enables the generation of fully numerical scalar power spectra for any warm inflation model and integrates with Cobaya to facilitate efficient parameter estimation against cosmological data using machine learning techniques.
This paper investigates the thermodynamic and radiative properties of regular black holes surrounded by an Einasto dark matter halo, demonstrating that the dark matter suppresses Hawking temperature and energy emission while introducing a stable thermodynamic phase and increased flux intermittency compared to standard Schwarzschild black holes.
The paper proves the spacetime positive mass theorem for both asymptotically flat and asymptotically hyperboloidal initial data sets in any dimension , building upon recent advancements in the Riemannian positive mass theorem by Brendle and Wang.
This paper develops a semiclassical framework to describe how charged spin- matter-wave interferometers accumulate dynamical, spin, and electromagnetic Aharonov-Bohm phases when propagating through gravitational-wave backgrounds, revealing how spacetime curvature imprints itself through distinct physical couplings.
This paper uses analytical and numerical simulations to demonstrate that supermassive black hole binaries decouple from their circumbinary disks earlier than previously predicted, a process that significantly alters accretion patterns and could provide a detectable electromagnetic signature for gravitational wave events.
The paper classifies all axis-symmetric non-gradient -quasi-Einstein structures on a two-sphere, identifying the extreme Kerr black hole horizon as a specific case and providing new regular metrics for other values of expressed via hypergeometric functions.
This paper demonstrates that the "polarization wiggling" of electromagnetic radiation—an effect caused by gravitational fields—can be used to independently measure the vector and tensor components of gravity, including the angular momentum of a source and the full state parameters of gravitational tensor modes.