⚛️ Category

gr-qc

3826 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

The impact of physically motivated calibration errors on search pipeline detection parameters for broadband burst Signals

This study demonstrates that realistic, frequency-dependent calibration errors have a minimal impact (less than one percent) on the detection efficiency and explosion-energy limits of broadband gravitational wave burst signals from core-collapse supernovae, as the dominant effects are indirect and astrophysical uncertainties remain the primary limiting factor.

Milan Wils (KU Leuven, Leuven Gravity Institute, Department of Physics and Astronomy, Leuven, Belgium), Brad Ratto (Depa (…)2026-07-21
⚛️ general relativity

Shadow of the generalized Vaidya black hole

This paper investigates the shadow of a generalized Vaidya black hole described by the Husain solution, demonstrating that the equation-of-state parameter α\alpha dictates whether the shadow enlarges or shrinks relative to the standard Vaidya case, and establishing that in time-dependent scenarios, shadow evolution is governed by local effective influx rather than the separate signs of mass and charge growth rates.

Vitalii Vertogradov, Ali Övgün2026-07-21
⚛️ general relativity

Harmonic oscillation and orbital morphology for spinning charged quantum corrected black hole

This study analyzes the orbital dynamics, stability, and precession frequencies of test particles around a spinning, charged, quantum-corrected Einstein-Maxwell-dilaton black hole to determine how spin, charge, and quantum correction parameters modify spacetime geometry and circular orbit behavior near the event horizon.

Rameez Khalid, Muhammad Yasir, Shahid Qaisar, Faisal Javed2026-07-21
⚛️ general relativity

An Unsupervised Search for Novel Instrumental Glitches in LIGO O4a: Multi-Scale Sensitization, Empirical Physical Vetoes, and Rate Upper Limits

This paper presents the DANTE V3 pipeline's unsupervised search for novel instrumental glitches in LIGO's O4a data, which, after applying multi-scale analysis and physical vetoes to address domain-shift artifacts, found no coincident anomalies and established 90% frequentist upper limits on the rate of such uncatalogued instrumental morphologies.

Luca Cirfeta2026-07-21
⚛️ general relativity

Search for continuous gravitational waves from the pulsar J0435+3233

Using LIGO O4a data, researchers conducted a search for continuous gravitational waves from the unique millisecond pulsar J0435+3233, resulting in a non-detection but establishing a stringent upper limit on the gravitational wave amplitude that surpasses the spin-down limit by a factor of approximately 14 and constrains the source's ellipticity to a physically interesting range of low 10−810^{-8}.

Brian McGloughlin, Jing Ming, Maria Alessandra Papa, Kartikey Sharma, Reinhard Prix, Benjamin Steltner, Heinz-Bernd Egge (…)2026-07-21
⚛️ phenomenology

Theoretical uncertainties in reconstructing model parameters with gravitational waves from supercooled phase transitions

This paper demonstrates that reconstructing fundamental parameters of supercooled phase transition models from future gravitational-wave signals is severely limited by theoretical uncertainties, as the commonly used daisy-resummation scheme introduces errors that dominate over statistical reconstruction uncertainties compared to a more rigorous high-temperature effective field theory approach.

Maciej Kierkla, Marek Lewicki, Philipp Schicho, Daniel Schmitt, Bogumila Swiezewska2026-07-21
⚛️ general relativity

Cosmological consequences of a dynamical dark matter in the light of DESI DR2 measurements

This paper proposes a dynamical dark matter model with a non-zero equation of state to interpret recent DESI DR2 results, finding that while it offers a statistically preferred fit to cosmological data over the standard Λ\LambdaCDM model and alleviates the S8S_8 tension, it remains disfavored compared to dynamical dark energy interpretations.

Abhijith Ajith, Utkarsh Kumar2026-07-21
⚛️ general relativity

Laying the foundation of the effective-one-body waveform models SEOBNRv5: improved accuracy and efficiency for spinning non-precessing binary black holes

This paper introduces SEOBNRv5HM, a significantly more accurate and efficient effective-one-body waveform model for spinning non-precessing binary black holes that incorporates higher-order post-Newtonian results, additional gravitational modes, and extensive numerical relativity calibration, while being implemented in a high-performance Python package to support future gravitational-wave observations.

Lorenzo Pompili, Alessandra Buonanno, Héctor Estellés, Mohammed Khalil, Maarten van de Meent, Deyan P. Mihaylov, Serguei (…)2026-07-20