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.

Recoil geometry determines electromagnetic counterparts from supermassive black hole merger remnants

This study presents the first general relativistic magnetohydrodynamic simulations demonstrating that the geometry of a gravitational recoil following a supermassive black hole merger critically determines the resulting electromagnetic counterparts, ranging from sustained relativistic jets in perpendicular recoils to shock heating and jet quenching in in-plane collisions, or intermittent outbursts in oblique cases.

Yoonsoo Kim, Elias R. Most, Hai-Yang Wang2026-03-30⚛️ gr-qc

Higgs-like field interactions before symmetry breaking

The paper investigates the Brout-Englert-Higgs mechanism prior to symmetry breaking and demonstrates that the interaction between Higgs fields and massless gauge fields results in the production of particles with negative squared mass.

Jerzy Paczos, Szymon Cedrowski, Krzysztof Turzynski, Andrzej Dragan2026-03-27⚛️ hep-ph

Semi-Supervised Learning for Lensed Quasar Detection

This paper addresses the scarcity of confirmed lensed quasars by developing two semi-supervised machine learning models—a variational autoencoder combined with a dense neural network and a convolutional neural network using virtual adversarial training—that effectively leverage unlabelled data to identify high-quality candidates, exemplified by the discovery of GRALJ140833.73+042229.98.

David Sweeney, Alberto Krone-Martins, Daniel Stern, Peter Tuthill, Richard Scalzo, George Djorgovski, Christine Ducourant, Ashish Mahabal, Ramachrisna Teixeira, Matthew Graham2026-03-27⚛️ gr-qc

Fullshape power spectrum for the Symmetron modified gravity model

This paper develops and validates a fullshape galaxy power spectrum pipeline for the Symmetron modified gravity model using perturbation theory and MCMC analysis, demonstrating its viability and similarity to the Hu-Sawicki F6 model through comparisons with EZMock simulations.

Gerardo Morales-Navarrete, Jorge L. Cervantes-Cota2026-03-27⚛️ gr-qc

Black hole photon ring beyond General Relativity: an integrable parametrization

This paper introduces a symmetry-preserving "Kerr off-shell" parametrization to analytically derive the photon ring's critical curve in beyond-Kerr geometries, demonstrating that the circlipse fitting function suffers from significant degeneracy where identical ring shapes can arise from distinct combinations of mass, spin, and deviation parameters, thereby necessitating independent measurements of mass and spin to rigorously test the Kerr hypothesis.

Jibril Ben Achour, Eric Gourgoulhon, Hugo Roussille2026-03-27⚛️ gr-qc

Detectability of post-Newtonian classical and quantum gravity via quantum clock interferometry

This paper proposes a theoretical experimental scheme using quantum clock interferometry to detect post-Newtonian frame-dragging effects and test the quantum equivalence principle via gravity-induced entanglement, offering a pathway for future investigations into the intersection of quantum mechanics and general relativity despite current technological limitations.

Eyuri Wakakuwa2026-03-27⚛️ gr-qc

Anisotropic critical points from holography

This paper presents a comprehensive analysis of 5-dimensional Einstein-Maxwell-Dilaton-Axion holographic theories with exponential couplings, deriving exact anisotropic solutions that serve as IR fixed points, characterizing their thermodynamic and transport properties, and demonstrating their utility as benchmarks for strongly coupled anisotropic matter in systems ranging from quark-gluon plasma to neutron star cores.

Dimitrios Giataganas, Umut Gürsoy, Claire Moran, Juan F. Pedraza, David Rodríguez Fernández2026-03-27⚛️ hep-th

Regular Black Hole Cores via Gravitational Evanescence of Collapsing Matter

This paper demonstrates that modified Einstein's equations with non-minimal gravity-matter coupling can resolve gravitational collapse singularities into regular black holes with de Sitter, Minkowski, or steep-pressure cores, proving that a Minkowski core specifically requires the Newton constant to assume negative values before vanishing.

Antonio Panassiti2026-03-27⚛️ gr-qc

Holography for de Sitter bubble geometries

This paper generalizes de Sitter holography to geometries with a bubble of smaller or vanishing cosmological constant, proposing that the spacetime is encoded on two holographic screens when the observer's causal patch overlaps with the parent region, while requiring additional screens when they are causally disconnected.

Anastasios Irakleous, François Rondeau, Nicolaos Toumbas2026-03-27⚛️ hep-th

A Light-Cone Approach to Higher-Order Cosmological Observables

This paper develops a second-order cosmological perturbation theory on a light-cone background, establishing a gauge-invariant framework that connects to the Observational Synchronous Gauge and successfully computes the luminosity distance-redshift relation up to second order while eliminating observer-position divergences in a model-independent manner.

Pierre Béchaz, Giuseppe Fanizza, Giovanni Marozzi, Matheus R. Medeiros Silva2026-03-27⚛️ gr-qc

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