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.

Thermodynamic, Optical, and Orbital Signatures of Regular Asymptotically Flat Black Holes in Quasi-Topological Gravity

This paper analytically and numerically characterizes a class of regular, asymptotically flat black holes in four-dimensional quasi-topological gravity, demonstrating how increasing the deformation parameter reduces temperature, shadow size, and photon-orbit instability while enhancing orbital binding efficiency and accretion luminosity, whereas increasing the exponent ν\nu suppresses these effects to restore Schwarzschild-like behavior.

Zainab Malik2026-03-26⚛️ gr-qc

Core-Collapse Supernovae and their Gravitational Wave Signals: The Status of Theory and Modeling

This review summarizes the current theoretical understanding of core-collapse supernova explosion mechanisms and their associated gravitational wave signals, highlighting how these signals can constrain key physical properties while identifying the need for large model databases and systematic uncertainty quantification to prepare for future multi-messenger observations.

Bernhard Müller (Monash University)2026-03-26⚛️ gr-qc

Quasinormal Modes of a Massive Scalar Field in 4D Einstein--Gauss--Bonnet Black Hole Spacetimes

This paper investigates the quasinormal modes, grey-body factors, and absorption cross-sections of massive scalar fields in four-dimensional Einstein–Gauss–Bonnet black hole spacetimes, revealing that increasing field mass leads to long-lived quasi-resonant states while the Gauss–Bonnet coupling exerts a comparatively mild influence within the stability-constrained regime.

Bekir Can Lütfüo\u{g}lu2026-03-26⚛️ gr-qc