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.

Detectability of axion-like dark matter for different time-delay interferometry combinations in space-based gravitational wave detectors

This paper demonstrates that by employing additional wave plates to detect axion-like dark matter-induced birefringence, space-based gravitational wave detectors can achieve optimal sensitivity across different frequency ranges using specific time-delay interferometry combinations, with the Monitor and Beacon schemes excelling at high frequencies and ASTROD-GW capable of probing dark matter masses down to $10^{-20}\text{eV}$ .

Yong-Yong Liu, Jing-Rui Zhang, Ming-Hui Du, He-Shan Liu, Peng Xu, Yun-Long Zhang2026-04-08⚛️ gr-qc

Constraining interacting dark energy models with black hole superradiance

This paper proposes black hole superradiance as a novel astrophysical probe to constrain interacting dark energy and dark matter models by demonstrating how their coupling alters the effective mass and instability rates of ultralight bosons, thereby establishing a new synergy between black hole physics and cosmology.

Zhen-Hong Lyu, Rong-Gen Cai, Shao-Jiang Wang, Xiang-Xi Zeng2026-04-08⚛️ gr-qc

Evaporation of Primordial Black Holes in a Thermal Universe: A Thermofield Dynamics Approach

Using Thermofield Dynamics, this paper demonstrates that a finite-temperature cosmological background modifies the Hawking radiation spectrum of primordial black holes, thereby enhancing their evaporation rate and shortening their lifetimes compared to a zero-temperature vacuum.

Ayan Chatterjee, Jitumani Kalita, Debaprasad Maity2026-04-08⚛️ hep-th

Bianchi cosmologies in a Thurston-based theory of gravity

This paper demonstrates that a Thurston-based theory of gravity admits shear-free and static solutions across all Bianchi-Kantowski-Sachs topologies and ensures isotropization with a positive cosmological constant while preventing recollapse under the weak energy condition, thereby resolving specific limitations of General Relativity without introducing additional parameters.

Quentin Vigneron, Hamed Barzegar2026-04-08🔢 math-ph

Soft Algebras in AdS $_4$ from Light Ray Operators in CFT $_3$

This paper establishes a direct connection between holographic symmetry algebras in Minkowski space and AdS $_4$ by demonstrating that the tower of soft gluons generating the asymptotic $S$ -algebra in M $^4$ maps to light ray operators derived from conserved currents in the boundary CFT $_3$ under a specific conformal transformation.

Ahmed Sheta, Andrew Strominger, Adam Tropper, Hongji Wei2026-04-08⚛️ hep-th

Exact Kerr-Newman-(A)dS and other spacetimes in bumblebee gravity: employing a simple generating technique

This paper establishes a unique generating technique for constructing exact bumblebee gravity solutions from vacuum spacetimes by adding a term proportional to the square of the bumblebee field vector (aligned with background geodesics), which is then applied to derive the non-unique bumblebee extension of the Kerr-Newman-Taub-NUT-(anti-)de Sitter spacetime subject to global reality constraints.

Hryhorii Ovcharenko2026-04-08⚛️ gr-qc

The Bondi universe: Can negative mass drive the cosmological expansion?

This paper proposes that cosmic acceleration arises naturally from the nonlinear dynamics of a universe containing equal amounts of positive and negative Bondi masses, where the transition from a weakly to a strongly coupled gravitational regime drives a shift from ballistic expansion to uniform acceleration without requiring dark energy.

Giovanni Manfredi, Jean-Louis Rouet, Bruce Miller2026-04-08⚛️ gr-qc

FluxMC: Rapid and High-Fidelity Inference for Space-Based Gravitational-Wave Observations

FluxMC is a machine learning-enhanced framework that combines Flow Matching with Parallel Tempering MCMC to overcome the computational bottlenecks of traditional Bayesian inference, enabling rapid and high-fidelity parameter estimation for space-based gravitational-wave observations without compromising between model accuracy and analysis speed.

Bo Liang, Chang Liu, Hanlin Song, Tianyu Zhao, Minghui Du, He Wang, Haohao Gu, Sensen He, Yuxiang Xu, Wei-Liang Qian, Li-e Qiang, Peng Xu, Ziren Luo, Mingming Sun2026-04-08🔭 astro-ph

Global Dynamical Structure of Einstein$-$Scalar Cosmological Systems

This paper establishes that spatially flat FLRW cosmologies driven by a minimally coupled canonical scalar field possess a compact global attractor with a normally hyperbolic, structurally stable asymptotic structure, where late-time dynamics are universally governed by at most two degrees of freedom regardless of the specific potential.

Prasanta Sahoo2026-04-08⚛️ gr-qc

Revisiting The Gravitational Mirroring In Presence of Compact Objects

This paper proposes a novel concept of astrophysical mirroring within the Schwarzschild framework, demonstrating through theoretical and numerical analysis that the extreme spacetime curvature around compact massive objects can bend light rays to create mirror-like reflection images of distant sources.

Bikramarka S Choudhury, Aritra Sanyal, Md Khalid Hossain, Farook Rahaman2026-04-08⚛️ gr-qc

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