gr-qc papers | Gist.Science

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

No parametrisation, No Problem: A Weakly Modelled Framework to Constrain the Luminosity Distance--Redshift Relation Using Gravitational Wave Sirens

This paper introduces a weakly modelled, quasi-model-independent framework to reconstruct deviations from General Relativity in the luminosity distance-redshift relation using gravitational wave sirens, which successfully constrains various deviation patterns in current GWTC-5 data while demonstrating that third-generation detectors will be required to detect sub-5% deviations.

Elena Colangeli, Konstantin Leyde, Tessa Baker, Anson Chen2026-08-20

⚛️ general relativity

On uniqueness of non-vacuum stationary axisymmetric type D spacetime

This paper demonstrates that the conformal-to-Carter metric represents the most general form of non-vacuum stationary axisymmetric type D spacetimes with geodesic and shearfree principal null directions, establishing this result without relying on the restrictive assumptions previously used by Ovcharenko and Podolský.

Hiroaki Nakajima, Ya Guo, Wenbin Lin2026-08-20

⚛️ high-energy theory

Non-abelian uni-vector deformations in gauged supergravities and non-abelian Einstein-Maxwell theories

This paper constructs non-abelian uni-vector deformations of solutions in gauged supergravities and non-abelian Einstein-Maxwell theories via Scherk–Schwarz reductions, demonstrating that the latter can be interpreted as coordinate transformations in the parent general relativity theory.

Kirill Gubarev, Konstantin Sovit2026-08-20

⚛️ general relativity

Estimation of systematic error from bulk deformation of end test mass induced by photon calibrator for LIGO post-O5 gravitational wave projects

This paper investigates and quantifies the systematic calibration errors in LIGO and other gravitational wave detectors caused by the bulk deformation of end test masses induced by Photon Calibrators, utilizing finite-element analysis to evaluate this frequency-dependent effect across various beam offset scenarios for current and future detector configurations.

Daiki Tanabe, Aloysius Niko, Kun-Yao Chang, Yuki Inoue, Dripta Bhattacharjee, Richard Savage, Henry Tsz-King Wong2026-08-20

⚛️ general relativity

Duru-Kleinert Path Integral in Unimodular Quantum Cosmology

This paper employs the Duru-Kleinert path integration technique to establish a correspondence between unimodular quantum cosmology and the hydrogen atom, enabling the derivation of a quantized negative cosmological constant and the calculation of both the quantum tunneling rate from "nothing" and the spectral density with Krylov complexity for positive cosmological constants.

Xiao-Kan Guo2026-08-20

⚛️ general relativity

Notes on Kerr-Bertotti-Robinson Spacetime

This paper demonstrates that the Kerr-Bertotti-Robinson spacetime admits a natural extension forming an infinite chain of wormhole-connected regions that exposes naked singularities and challenges cosmic censorship, while its associated quasinormal mode analysis reveals both chronology-violating instabilities and echo-like responses.

Yu-Sen Zhou, Liang-Bi Wu, Ming-Fei Ji, Wen-Tao Fu, Li-Ming Cao, Rong-Gen Cai2026-08-20

⚛️ general relativity

On entropic cosmology, late time acceleration and the quantum bounce

This paper proposes a unified entropic framework that derives the Friedmann equations from a modified entropy area, successfully explaining both the quantum bounce in Loop Quantum Cosmology at high densities and the late-time cosmic acceleration driven by dark energy in the large-universe limit.

Luis Rey Diaz-Barron, G. E. Pérez-Cuéllar, M. Sabido2026-08-20

⚛️ general relativity

Bounce solutions with quantum vacuum effects of massive fields and subsequent Starobinsky inflation

This paper extends previous work on quantum vacuum-driven cosmological bounces by investigating the weak impact of massive fields on the trace anomaly and demonstrating how adding an $R^2$ term enables a trans-Planckian bounce followed by Starobinsky inflation through three distinct scenarios.

Wagno Cesar e Silva, Samuel W. P. Oliveira, Ilya L. Shapiro2026-08-19

⚛️ general relativity

Long-term stable nonlinear evolutions of ultracompact black-hole mimickers

By combining perturbative analysis with 3+1 numerical-relativity simulations, this study demonstrates that ultracompact boson stars with light rings are divided into stable and unstable branches by extremal-mass configurations, confirming that thin-shell variants on the stable branch represent long-term stable black-hole mimickers.

Gareth Arturo Marks, Seppe J. Staelens, Tamara Evstafyeva, Ulrich Sperhake2026-08-19

⚛️ general relativity

A new type of multi-branch periodic orbits in dyonic black holes

This paper demonstrates that in dyonic black hole spacetimes arising from quasi-topological electromagnetism, the non-monotonicity of the metric function outside the event horizon, rather than the number of horizons, is the geometric origin of multi-branch periodic orbits, enabling the coexistence of multiple distinct bound timelike trajectories with identical rational parameters.

Chao-Hui Wang, Yu-Peng Zhang, Tao Zhu, Shao-Wen Wei2026-08-19

← Previous Next →