⚛️ Category

gr-qc

3967 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

Using precession and quasiperiodic oscillations to constrain a rotating regular black hole

This paper constrains the quantum gravity parameter of a rotating regular black hole with a Minkowski core by analyzing periastron and Lense-Thirring precession frequencies to fit five observed quasiperiodic oscillation events via Markov Chain Monte Carlo simulations, while also demonstrating that quantum effects suppress spin precession frequencies compared to the standard Kerr black hole.

Meng-He Wu, Hong Guo, Xiao-Mei Kuang2026-03-03
⚛️ general relativity

The cosmic consequences and the constraints on HN-gravity

This paper demonstrates that the Hoyle-Narlikar gravity model with a creation field and nonminimal matter interaction successfully explains late-time cosmic acceleration, offers tighter constraints on the Hubble tension compared to other modified gravity theories, and remains observationally consistent with recent datasets while ultimately converging toward the stability of the standard Λ\LambdaCDM model.

J. K. Singh, Sonal Aggarwal, Shaily, Hamid Shabani, Joao R. L. Santos2026-03-03
⚛️ high-energy experiments

How Bright in Gravitational Waves are Millisecond Pulsars for the Galactic Center GeV Gamma-Ray Excess? A Systematic Study and Implications for Dark Matter

This study systematically investigates the gravitational wave emission from a population of millisecond pulsars proposed to explain the Galactic Center GeV gamma-ray excess, concluding that while current detectors cannot observe them, next-generation instruments like the Einstein Telescope and Cosmic Explorer may detect these signals to definitively test the pulsar versus dark matter interpretations of the excess.

Ming-Yu Lei, Bei Zhou, Xiaoyuan Huang2026-03-03
⚛️ general relativity

On the treatment of thermal effects in the equation of state on neutron star merger remnants

This study utilizes long-term numerical-relativity simulations with fully tabulated finite-temperature equations of state to demonstrate that thermal treatment significantly influences the late-time gravitational-wave frequency evolution and convective stability of neutron star merger remnants, thereby challenging established quasi-universal relations and confirming the excitation of inertial modes detectable by future third-generation observatories.

Davide Guerra, Milton Ruiz, Michele Pasquali, Pablo Cerdá-Durán, Arnau Rios, José A. Font2026-03-03
⚛️ general relativity

DD-dimensional aether charged black hole and aether waves in M-subset of Einstein-aether theory

This paper investigates DD-dimensional charged black hole solutions and gravitational wave polarizations within a specific M-subset of Einstein-aether theory, revealing a unique aether charge constraint, exact thermodynamic laws, and distinct wave propagation characteristics where spin-2 and spin-1 modes travel at unit speed while the longitudinal mode exhibits linear time dependence rather than behaving as a spin-0 mode.

Chikun Ding, Yuebing Zhou, Yu Shi, Xiangyun Fu2026-03-03
⚛️ general relativity

Geodesic dynamics and multi-inclination images of a non-minimally coupled black hole with a thin accretion disk

This paper investigates the optical properties of a non-minimally coupled Einstein-Yang-Mills black hole with a thin accretion disk, revealing that the coupling parameter significantly alters the ISCO and photon sphere, extends the impact parameter range, enhances redshift, and ultimately produces a weaker observed intensity compared to Schwarzschild and Reissner-Nordström black holes across all inclination angles.

Tian-Yu Chen, Yong-Zhuang Li, Xiao-Mei Kuang2026-03-03