⚛️ Category

gr-qc

3841 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.

⚛️ general relativity

On the Kalb-Ramond modified Lorentz violating hairy black holes and Thorne's hoop conjecture

This paper numerically investigates the horizon structures of Kalb-Ramond modified Lorentz-violating hairy black holes with relaxed energy conditions, identifying four distinct types including braneworld analogues, and demonstrates that while Thorne's hoop conjecture holds for most cases, it fails for Schwarzschild-de Sitter generalizations, while also highlighting how braneworld tidal charges uniquely increase planetary perihelion advance compared to ordinary black holes.

K. K. Nandi, R. N. Izmailov, R. Kh. Karimov, A. A. Potapov2026-07-01
⚛️ general relativity

Galactic microlensing by backreacted massless wormholes

This paper investigates Galactic microlensing by backreacted massless wormholes, demonstrating that electrically charged variants produce distinct observational signatures—specifically dimmer light curves with characteristic "gutters" and vanishing Einstein radii at extreme charge limits—compared to Schwarzschild black holes, suggesting that re-examining past microlensing data could reveal their presence as dark halo objects.

G. F. Akhtaryanova, R. Kh. Karimov, R. N. Izmailov, K. K. Nandi2026-07-01
⚛️ general relativity

Quantum work extraction of an accelerated battery as an indicator of trajectory-modified vacuum fluctuations in Minkowski spacetime

This paper proposes an accelerated Unruh-DeWitt battery model to demonstrate that the maximal quantum work extraction (ergotropy) serves as a witness for trajectory-modified vacuum fluctuations, revealing distinct thermality behaviors between linear and circular motions and significant oscillations near reflecting boundaries driven by the protection of quantum coherence.

Xiang Hao, Cheng-Tai Wu, Wei-Wei Zhang, Gao-Feng Gan, Tian-Xi Ren, Jia-Yin Shen, Yin-Zhong Wu2026-07-01
⚛️ general relativity

Galaxy bias renormalization: Two-loop Power Spectrum, One-loop Trispectrum and Bispectrum

This paper presents a complete, fully renormalized framework for fifth-order galaxy bias at the one- and two-loop levels, providing explicit computations for the two-loop power spectrum, one-loop bispectrum, and trispectrum while incorporating stochastic renormalization and demonstrating a pronounced scale-dependence in higher-gradient bias coefficients.

Thomas Bakx, Mathias Garny, Henrique Rubira, Zvonimir Vlah2026-07-01
⚛️ general relativity

A parametric signal plus noise inference framework for short duration non-Gaussian noise transients

This paper introduces **bilby-antiglitch**, a parametric Bayesian inference framework that jointly models astrophysical signals and short-duration non-Gaussian noise transients to accurately recover source properties and prevent false General Relativity violations in gravitational wave data contaminated by glitches.

Charlie Hoy, Ruxandra Bondarescu, Andrew Lundgren, Laura K. Nuttall2026-07-01
⚛️ general relativity

Cosmological Viability of Exponential Infrared f(T)f(T) Gravity

Using a comprehensive set of cosmological observations, this study finds that while the primary branch of exponential infrared f(T)f(T) gravity alleviates the Hubble tension, it remains statistically disfavored compared to Λ\LambdaCDM, and its secondary branch is decisively ruled out due to inconsistencies between background expansion and perturbation constraints.

Mahmoud Hashim, Eleonora Di Valentino, Jackson Levi Said, Waleed El Hanafy2026-07-01
⚛️ general relativity

Probing globular clusters parameters through gravitational wave lensing with stellar-mass black hole binaries

This paper demonstrates that gravitational wave lensing by globular clusters, modeled as singular isothermal spheres, can be used to recover the effective lensing mass and estimate the clusters' central velocity dispersion, thereby offering a complementary method to probe their intrinsic dynamics.

Sreekanth Harikumar, Abbas Askar, Michał Bejger, Marek Biesiada, Martin Hendry, Justin Janquart2026-07-01
⚛️ general relativity

Relativistic Gravity-Induced Entanglement via Frame Dragging

This paper demonstrates that frame dragging can generate gravity-induced entanglement between a source mass and a particle in an interferometer, confirming the effect through both quantized Hamiltonian and path integral methods to provide a relativistically causal witness for the non-classical nature of gravity.

Eyuri Wakakuwa, Luciano Petruzziello, Trinidad B. Lantaño, Susana F. Huelga, Martin B. Plenio2026-07-01