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

The quasinormal modes of the rotating quantum corrected black holes

This paper studies the quasinormal modes of rotating quantum-corrected black holes using a hyperboloidal framework and pseudo-spectral method, then demonstrates that employing informative priors in a methodological parameter estimation pipeline significantly tightens constraints on the quantum correction parameter and reveals deviations from the standard Kerr model.

Jia-Ning Chen, Zong-Kuan Guo, Liang-Bi Wu2026-04-07
⚛️ phenomenology

Stellar Superradiance and Low-Energy Absorption in Dense Nuclear Media

This paper demonstrates that while naive extrapolations of microphysical absorption rates suggest ultralight bosons could rapidly drain neutron star rotational energy via superradiance, accounting for collective multiple-scattering effects in dense nuclear matter significantly suppresses these rates, thereby reconciling stellar cooling constraints with superradiance stability.

Zhaoyu Bai, Vitor Cardoso, Yifan Chen, Yuyan Li, Jamie I. McDonald, Hyeonseok Seong2026-04-07
⚛️ high-energy theory

Diagnosing Effective Metal-Insulator and Hawking-Page Transitions: A Mixed-State Entanglement Perspective in Einstein-Born-Infeld-Massive Gravity

This paper demonstrates that the entanglement wedge cross-section (EWCS) serves as a superior and sensitive probe for diagnosing both effective metal-insulator and Hawking-Page transitions in Einstein-Born-Infeld massive gravity, revealing a universal critical exponent of 1/3 for geometry-related quantities near second-order phase transitions.

Zhe Yang, Jian-Pin Wu, Peng Liu2026-04-07
⚛️ phenomenology

Joint Constraints on Neutrinos and Dynamical Dark Energy in Minimally Modified Gravity

This paper demonstrates that the w†w_{\dagger}VCDM framework of minimally modified gravity, when combined with current cosmological data and an extended neutrino sector, robustly accommodates neutrino constraints while predicting a stable late-time dark energy transition that significantly alleviates the H0H_0 tension.

Artur Ladeira, Rafael C. Nunes, Supriya Pan, Weiqiang Yang2026-04-07
⚛️ high-energy theory

Lattice simulations of scalar-induced gravitational waves from inflation

This paper employs lattice simulations to demonstrate that nonperturbative scalar dynamics during ultra-slow-roll inflation can significantly alter the amplitude and spectral shape of scalar-induced gravitational waves, revealing that standard semi-analytical perturbative methods often fail to provide reliable predictions in regimes of large non-Gaussianity.

Angelo Caravano, Gabriele Franciolini, Sébastien Renaux-Petel2026-04-07
⚛️ quantum physics

Nonlocal advantage of quantum imaginarity in Schwarzchild spacetime

This study investigates the impact of Hawking radiation in Schwarzschild spacetime on quantum imaginarity, revealing that while nonlocal advantage is suppressed in the physically accessible region and absent in the inaccessible region, assisted imaginarity distillation exhibits opposite monotonic trends in fidelity between these two regions as temperature increases.

Bing Yu, Xiao-Yong Yang, Xiao-Li Hu, Zhi-Xiang Jin, Xiao-Fen Huang2026-04-07