⚛️ Category

gr-qc

3875 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

Universal Thermodynamic Topological Classes of BTZ Black Holes in Einstein and F(R) Gravity

This paper systematically demonstrates that the thermodynamic topological classification of three-dimensional BTZ black holes is fundamentally governed by the interplay of gravitational frameworks (Einstein vs. F(R)), matter field configurations, and ensemble choices, revealing how these factors collectively determine the black holes' intrinsic topological classes within a universal three-dimensional spacetime system.

Yu-Die Wan, Peng Zhao, Meng-Yao Zhang, Zheng-Wen Long2026-05-27
⚛️ general relativity

Are Petrov type-N and D spacetimes admitting CTCs valid in f(R,Lm,Φ,X)f(R,\mathcal{L}_m,\Phi,X) gravity?

This paper demonstrates that the Ori and Ahmed spacetimes, which contain closed timelike curves, remain valid exact solutions in the f(R,Lm,Φ,X)f(R,\mathcal{L}_m,\Phi,X) gravity framework with a specific kinetic-coupling model, indicating that the additional scalar degree of freedom in this theory does not enforce a chronology-protection mechanism.

Faizuddin Ahmed, Ahmad Al-Badawi, żzzet Sakallı2026-05-27
⚛️ high-energy theory

Thermal Casimir Effect in A Schwarzschild-like Wormhole Spacetime

This paper investigates the finite-temperature Casimir effect for a massless scalar field confined between parallel plates in a Schwarzschild-like wormhole spacetime, demonstrating that the thermal correction to the renormalized free energy becomes geometry-independent in the comoving frame while yielding thermodynamic quantities that satisfy fundamental laws at low temperatures.

Arista Romadani, Apriadi Salim Adam, Ar Rohim, Bintoro Anang Subagyo, Agus Purwanto2026-05-27
⚛️ general relativity

Open Data from LIGO, Virgo, and KAGRA through the Second Part of the Fourth Observing Run

This paper details the public release of open data from the LIGO, Virgo, KAGRA, and GEO gravitational-wave network via the Gravitational Wave Open Science Center, encompassing calibrated strain time series and analysis products from the second part of the fourth observing run (O4b) and selected engineering run periods spanning April 2024 to January 2025.

The LIGO Scientific collaboration, the Virgo collaboration, the KAGRA collaboration2026-05-27
⚛️ general relativity

GWTC-5.0: An Introduction to Version 5.0 of the Gravitational-Wave Transient Catalog

This paper introduces GWTC-5.0, the fifth version of the Gravitational-Wave Transient Catalog, which expands the dataset to include observations through January 28, 2025, and reports over 300 detected merging binary systems to facilitate further research into the gravitational-wave universe.

The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration, A. G. Abac, A. Abe, I. Abouelfett (…)2026-05-27
⚛️ general relativity

GWTC-5.0: Methods for Identifying and Characterizing Gravitational-wave Transients

This paper outlines the complex analysis methods, including signal modeling, data quality assessment, and parameter inference, employed by the LIGO-Virgo-KAGRA Collaboration to identify and characterize gravitational-wave transients for the fifth release of the Gravitational-Wave Transient Catalog (GWTC-5.0) based on data from the second part of their fourth observing run.

The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration2026-05-27