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.

⚛️ general relativity

Constraint on magnetized black bounce spacetime from HFQPOs data and the selection of resonance models via information criterion

This study utilizes high-frequency quasi-periodic oscillation data from three microquasars to constrain the parameters of magnetized Simpson-Visser black bounce spacetime, revealing that magnetic fields significantly influence orbital dynamics and that the ER8ER_8 resonance model is the most supported, with results favoring a regular black hole interpretation of the spacetime.

Shining Yang, Jianbo Lu, Mou Xu, Yu Liu2026-10-28
⚛️ general relativity

A Quiet Night in the Millihertz Sky? LISA Forecasts from LIGO/Virgo/KAGRA Populations

Using population constraints from the latest LIGO/Virgo/KAGRA data (GWTC-5.0), this paper forecasts that the Laser Interferometer Space Antenna (LISA) will detect between approximately 6 and 14 binary black holes over four years, with a significant fraction of these systems serving as potential multiband sources detectable by future ground-based observatories like Cosmic Explorer.

Ignacio Magaña Hernandez, Antonella Palmese2026-10-28
⚛️ phenomenology

Nonradial oscillation modes of axion condensed neutron stars in the Cowling approximation

This paper investigates the nonradial oscillation spectrum of axion-condensed neutron stars in the Cowling approximation, revealing that axion condensates significantly alter fluid mode frequencies, introduce rapid axion-emission damping for p-modes, and generate a distinct family of strongly damped axion-dominated quasinormal modes and gravitationally bound states that interact with fluid modes via avoided crossings.

Antonio Gómez-Bañón, Pantelis Pnigouras, José A. Pons2026-10-28
⚛️ general relativity

Relativistic N-body simulations with mass-varying neutrinos

This paper presents fully dynamical relativistic N-body and lattice simulations of mass-varying neutrinos coupled to a quintessence field, revealing highly dynamic, spinning neutrino lumps and phantom-crossing dark energy behaviors that offer distinct observational signatures to differentiate these models from standard Λ\LambdaCDM cosmology.

Øyvind Christiansen, Julian Adamek, Mainak Baidya, Vitor da Fonseca, Eric V. Linder, David F. Mota2026-10-28
⚛️ general relativity

Geodesic dynamics and tidal forces in a quantum-regularized black hole from string T-duality

This paper investigates how T-duality-inspired quantum regularization and electric charge modify the geodesic dynamics and tidal forces in regular black hole spacetimes, revealing finite central tidal forces, distinct compression regimes, and suppressed radial stretching compared to classical singular black holes.

G. Alencar, Micael S. Oliveira, Diego Sáez-Chillón Gómez, Marcos V. de S. Silva2026-10-28
⚛️ general relativity

Can One Hear the Absence of a Singularity?

This paper demonstrates that regular black holes, which resolve curvature singularities, exhibit a distinctively different large-overtone quasinormal mode spectrum compared to Schwarzschild black holes, with the real part of frequencies vanishing asymptotically, thereby providing a detectable spectral imprint of singularity resolution through nonperturbative spectral instability.

Matteo Della Rocca, Paolo Pani, Andrea P. Sanna2026-10-28