2626 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.
By constructing a noncommutative gravity waveform within the Parameterized Post-Einsteinian framework and analyzing the GW150914 and GW190814 events with higher-order modes, this study establishes the strongest observational constraint to date on noncommutative spacetime, yielding an upper bound of .
This study demonstrates that the CCC+TL cosmological model, proposed to explain JWST's high-redshift galaxy observations, is strongly disfavored by model-independent Hubble parameter measurements due to severe internal tensions between its supernova-optimized parameters and cosmic chronometer data, suggesting that the observed galaxy anomalies likely stem from intrinsic early-universe galaxy evolution rather than new physics.
This paper analyzes evolving dark energy models using DESI DR2 BAO data combined with various Type Ia supernova datasets and CMB constraints, finding that while LRG1-2 tracers drive a preference for and a phantom crossing at , the evidence for dynamical dark energy remains weak to moderate and no model consistently outperforms the standard CDM.
This paper investigates how ultralight boson clouds surrounding spinning black holes evolve within comparable-mass binary systems, demonstrating that gravitational molecular eigenstate transitions during orbital decay can significantly increase orbital eccentricity to levels detectable by ground-based gravitational wave observatories.
By analyzing the latest observational data from ACT, DESI, and DESY5, this study demonstrates that the original holographic and Ricci dark energy models are statistically disfavored and effectively ruled out due to severe tensions between early- and late-universe constraints and their inferior performance compared to the standard CDM model.
This paper investigates semi-classical wormhole geometries sourced by the conformal trace anomaly, demonstrating that specific parameter choices yield traversable solutions with finite curvature scalars and characterizing how the anomaly coefficients influence particle trajectories and orbital stability.
This paper investigates how local anisotropy significantly alters the fundamental oscillation frequency and dimensionless tidal deformability of neutron stars within a complete general relativistic framework, ultimately analyzing the correlation between these anisotropic effects and the GW170817 event.
This paper demonstrates that modular symmetry in heterotic orbifolds naturally generates a scalar potential with unstable de Sitter saddle points and multifield hilltop quintessence solutions that satisfy refined swampland de Sitter bounds.
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.
This paper demonstrates that both low-SNR glitches and the residuals from glitch subtraction can significantly bias black hole spin measurements, necessitating joint inference of glitch and gravitational wave parameters to mitigate these uncertainties.