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 establishes that magnetic Carroll supersymmetry originates from a twisted relativistic parent rather than a naive contraction, explicitly constructing a three-dimensional algebra and demonstrating its conformal extension coincides with the global part of a supersymmetric BMS algebra, thereby providing a physical relativistic origin for flat-space holographic duals.
This paper explores the theory of dual relativity to demonstrate that the interaction between ordinary and dual matter results in a positive gravitational energy in the Newtonian limit, thereby indicating an antigravitational nature.
This paper critically compares Newtonian/quasi-Newtonian and relativistic approaches to cosmological peculiar velocities, exposing internal inconsistencies in a recent defense of the former while affirming that relativistic treatments correctly resolve the limitations and contradictions inherent in quasi-Newtonian approximations.
This paper investigates the quasinormal modes, grey-body factors, and absorption cross-sections of a massive scalar field in regular black hole spacetimes supported by the Einasto profile, demonstrating that the interplay between the Einasto parameters and an external magnetic field (which controls the effective scalar mass) can strongly suppress damping rates to produce long-lived, quasi-resonant modes.
This paper investigates the asymptotic evolution of radiating stars by analyzing a master equation derived from stationary boundary conditions, identifying stationary points in the presence of charge and a cosmological constant, and establishing criteria for initial conditions that lead to a static geometry.
This paper establishes a dynamic equivalence between higher-derivative gravitational scalar-tensor theories and generalized hybrid metric-Palatini models by demonstrating that both can be reformulated in the Einstein frame as General Relativity minimally coupled to two interacting scalar fields, thereby providing an explicit dictionary for reconstructing one theory from the other.
This paper demonstrates that the eikonal quasinormal modes, greybody factors, and shadow radius of charged accelerating black holes are universally determined by the properties of circular null geodesics, extending known relationships from spherically symmetric black holes to accelerating and charged scenarios.
This paper introduces a novel on-shell equivalent reformulation of three-dimensional gravity using divergenceless vector frames inspired by the double copy for Chern-Simons theory, offering a transparent geometric interpretation and connecting the framework to Chern-Simons-like actions, higher-dimensional origins, and extensions.
This paper investigates the detection prospects of gravitational-wave displacement memory signals using future space-based interferometers, demonstrating that such soft signals from compact binary mergers and scattering events can be independently measured by a single LISA-like detector and precisely constrained by a LISA-Taiji network.
This paper investigates how spontaneous Lorentz symmetry breaking in metric-affine bumblebee gravity alters rotating black hole shadows, revealing distinct anisotropic deformations like vertical flattening and teardrop shapes that can be distinguished from the standard Kerr metric and potentially observed by the Event Horizon Telescope.