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

Addressing the Hubble Tension: Insights from Reversible and Irreversible Thermodynamic Processes

This paper investigates cosmological models incorporating reversible and irreversible thermodynamic processes, specifically gravitationally induced matter creation/annihilation and energy exchange with the cosmic horizon, finding that while these thermodynamically motivated interactions do not resolve the Hubble tension when local SH0ES measurements are included, they offer a dynamic dark energy alternative consistent with other cosmological datasets.

Hussain Gohar2026-03-12

⚛️ general relativity

Bulk viscosity from early-time thermalization of cosmic fluids in light of DESI DR2 data

Using DESI DR2 BAO measurements, this paper constrains a model of interacting dark matter and radiation that induces bulk viscosity to resolve cosmic tensions, finding that the data disfavors such interactions prior to recombination and rules out the model as a solution to the Hubble tension.

Hermano Velten, William Iania2026-03-12

⚛️ general relativity

Effects of dark dipole radiation on eccentric supermassive black hole binary inspirals

This paper investigates how dark dipole radiation from eccentric supermassive black hole binaries can accelerate their inspiral and alter the low-frequency stochastic gravitational-wave background, finding that while it cannot fully resolve the final-parsec problem, it remains detectable through Bayesian analysis of current pulsar timing array data.

Mu-Chun Chen, Yan Cao2026-03-12

⚛️ general relativity

The simple reason why classical gravity can entangle

This paper resolves the apparent contradiction between theory-independent no-go theorems and recent findings by explaining how classical gravity coupled to quantum matter can still induce entanglement, thereby underscoring the critical urgency of experimental investigations into low-energy quantum gravity effects.

Andrea Di Biagio2026-03-12

🔢 mathematics

Generalized Uncertainty Principle theory with a single constraint

This paper analyzes the consistency of deforming the Heisenberg algebra within constrained Hamiltonian systems to induce Generalized Uncertainty Principle theories on the reduced Poisson algebra, specifically examining scenarios involving rotational invariance and single Hamiltonian constraints relevant to General Relativity and cosmology.

Matteo Bruno, Sebastiano Segreto2026-03-12

⚛️ general relativity

Impact of Anisotropy on Neutron Star Structure and Curvature

This study investigates how pressure anisotropy, modeled via the Bowers-Liang framework and a quasi-local prescription, significantly enhances the maximum mass and compactness of neutron stars while revealing that internal curvature invariants tied to matter distribution are highly sensitive to anisotropy, unlike the more robust Weyl curvature.

A. C. Khunt, K. Yavuz Ekşi, P. C. Vinodkumar2026-03-12

🔭 astrophysics

CHRONOS Science Program

The CHRONOS paper proposes a next-generation cryogenic ground-based gravitational-wave observatory utilizing quantum non-demolition speed-meter technology to bridge the sub-Hz frequency gap, thereby enabling unprecedented long-duration tracking of compact binaries and precise constraints on the stochastic gravitational-wave background to advance astrophysics and cosmology.

Yuki Inoue (on behalf of CHRONOS collaboration), Mario Juvenal S Onglao III (on behalf of CHRONOS collaboration), Vivek (…)2026-03-12

⚛️ general relativity

Batalin-Fradkin-Vilkovisky quantization of Einstein gravity with off-diagonal solutions encoding Hořava type generating functions

This paper develops and applies the Batalin-Fradkin-Vilkovisky (BFV) formalism to quantize off-diagonal solutions of Einstein's equations on Lorentz manifolds with nonholonomic fibrations, demonstrating that these solutions encode Hořava-Lifshitz configurations with anisotropic scaling and effective cosmological constants in the quasi-classical limit.

Elşen Veli Veliev, Sergiu I. Vacaru2026-03-12

⚛️ general relativity

Kerr Black Hole Ringdown in Effective Field Theory

This paper develops a systematic effective field theory framework to calculate model-independent corrections to the quasinormal modes of Kerr black holes with arbitrary spin, revealing that near-extremality corrections exhibit an oscillatory dependence on the logarithm of a dimensionless temperature parameter, indicative of an underlying discrete-scale-invariant structure.

William L. Boyce, Jorge E. Santos2026-03-12

🔭 astrophysics

Thermal enhancement of inflationary magnetic fields

This paper proposes that assuming a thermal initial state for gauge fields during inflation, rather than the standard vacuum, introduces a dissipative boost that enhances primordial magnetic fields by up to $10^{16}$ , suggesting that embedding this mechanism in a warm inflation framework offers a promising path to inflationary magnetogenesis without requiring non-minimal couplings or modified electrodynamics.

Arjun Berera, Suddhasattwa Brahma, Zizang Qiu, Rudnei O. Ramos2026-03-12

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