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

Impact of the Einstein Telescope's duty cycle on the estimation of binary black holes parameters

This study demonstrates that the nested triangular design of the Einstein Telescope (ET-Î) outperforms the two separated L-shaped configuration (ET-2L) in estimating binary black hole parameters, particularly during partial network operation, because its inherent redundancy ensures multi-detector uptime that yields tighter constraints on luminosity distance and component masses even when signal-to-noise ratios are lower.

Luca Negri, Thomas C. K. Ng, Thibeau Wouters, Tim J. Kuhlbusch, Harsh Narola, Robin Chan, Kailib Ryan Doney, Francesco C (…)2026-06-23

⚛️ general relativity

Study of Cosmic Acceleration of the Universe in the Presence of Bulk Viscous Matter

This thesis investigates alternative non-Riemannian gravity formulations, specifically $f(Q)$ gravity with bulk viscosity, demonstrating that these models successfully account for the Universe's observed late-time accelerated expansion and reproduce its evolutionary history from matter-dominated eras to the current acceleration phase.

Dheeraj Singh Rana2026-06-23

🔭 astrophysics

Gas-induced perturbations on the gravitational wave in-spiral of live post-Newtonian LISA massive black hole binaries: 0.1 disk aspect ratio

This paper presents 3D hydrodynamics simulations of a $10^6~{\rm M}_\odot$ massive black hole binary in a thick ( $h/r=0.1$ ) circumbinary disk, demonstrating that gas-induced torques produce a detectable gravitational wave phase shift of 0.12 radians over 600 orbits at redshift $z\sim1$ , thereby offering a pathway for multi-messenger astronomy to probe the environments of LISA sources.

Mudit Garg, Alessia Franchini, Alessandro Lupi2026-06-23

⚛️ general relativity

Exact solutions using power law scalar potential in the Saez-Ballester-K-essence like theory

This paper derives exact classical and quantum solutions for a K-essence cosmological model with a negative power-law Saez-Ballester potential by utilizing a field redefinition to map the system to a known FLRW structure, revealing a late-time de Sitter expansion where the scalar field acts as a cosmic background.

J. Socorro, A. Gil-Ocaranza, Ximena López-Mujica, Cesar Aarón Pacheco-Vázquez2026-06-23

⚛️ general relativity

Scattering, Hawking Radiation and Neutrino Energy Deposition in Euler-Heisenberg Black Holes Surrounded by Perfect Fluid Dark Matter

This paper investigates the dynamical and scattering properties of Euler-Heisenberg black holes surrounded by perfect fluid dark matter, analyzing scalar, electromagnetic, and effective spin-2 perturbations to determine how dark matter and nonlinear electrodynamics influence quasinormal modes, greybody factors, Hawking radiation, and neutrino energy deposition.

Ramon Becar, P. A. Gonzalez, Ali Ovgun, Joel Saavedra, Yerko Vasquez2026-06-23

⚛️ high-energy theory

Dark bubbles, dark dimensions and fat gravitons

The paper presents the dark bubble model, which leverages de Sitter swampland instabilities to explain the positive cosmological constant while predicting a micron-sized dark dimension, a weakening of gravity at micron scales (realizing the fat graviton scenario), a TeV-scale string mass, and measurable positive spatial curvature.

Ulf Danielsson, Suvendu Giri2026-06-23

🔭 astrophysics

Loss-Cone-Limited Dark Matter Accretion onto Early Black Hole Seeds

This paper argues that while dark matter accretion onto early black hole seeds can be significantly enhanced by primordial black hole perturbations or triaxial halo dynamics, the process is ultimately limited by phase-space depletion, rendering it an unlikely solution for the rapid growth of supermassive black holes in generic NFW-like halos.

Brian Zhang, Grant J. Mathews2026-06-23

⚛️ general relativity

Solving Einstein Field Equations on a Digital Quantum Computer

This paper presents a proof-of-principle quantum algorithm for solving Einstein Field Equations within the WEBB tetrad formalism, demonstrating its capability to evolve Schwarzschild black hole spacetimes and extract gravitational quasinormal modes on both classical simulators and physical IBM quantum computers.

Clelia Altomonte, Malcolm Fairbairn2026-06-23

⚛️ general relativity

An open-source numerical tool for rational orbits and gravitational radiation in static spherically symmetric spacetimes

This paper introduces an open-source, parallelized Mathematica tool that efficiently simulates rational timelike orbits and their associated gravitational radiation in static spherically symmetric spacetimes, demonstrating its reliability through Schwarzschild tests and its potential for detecting extreme mass ratio inspirals with future space detectors.

Dan Li, Shiyang Hu, Chen Deng, Shijie Tan, Guansheng He2026-06-23

🔭 astrophysics

Optimization and robustness of cost-efficient seismic arrays for Newtonian noise cancellation at the Einstein Telescope

This paper demonstrates that optimizing cost-efficient seismic arrays for the Einstein Telescope by utilizing multiple seismometers per borehole and extending them into interferometer tunnels significantly enhances broadband Newtonian noise cancellation (achieving mitigation factors greater than 6 to 15) while maintaining robustness against positional variations.

Patrick Schillings, Johannes Erdmann2026-06-23

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