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.
This paper introduces a population-coherence decomposition of density-matrix purity to demonstrate that in Page-type black-hole evaporation models with uniform radiation populations, the late-time recovery of information is driven exclusively by coherence rather than population changes.
This paper investigates two specific gravity models with and , demonstrating through observational data analysis and parameter constraints that they successfully reproduce the Universe's transition from deceleration to late-time acceleration while remaining consistent with the standard CDM model and satisfying key energy conditions.
This paper constructs and analyzes charged AdS black hole solutions in 4D Einstein-Gauss-Bonnet gravity coupled to Euler-Heisenberg nonlinear electrodynamics, demonstrating how higher-curvature and nonlinear electromagnetic corrections significantly alter horizon structures, thermodynamic phase transitions, Joule-Thomson expansion, and particle dynamics.
This paper proposes a novel physical interpretation of the cosmological constant and introduces a "Breaking Energy-Momentum Symmetry" mechanism within alternative gravity theories to resolve the long-standing fine-tuning and coincidence problems that plague the standard LCDM framework.
This paper employs the high-precision Spectral Method to analyze the quasinormal modes of Planck stars within a scale-dependent gravity framework, revealing a complex oscillatory spectrum with unique features like Martini glass morphology and isolated overdamped modes that were previously undetected by lower-order approximation techniques.
This paper proposes a new modified cosmological model derived from a generalized entropy with non-separable microstate scaling, which introduces an effective dark energy sector capable of exhibiting quintessence-like, phantom-like, or crossing behaviors that ultimately stabilize to a cosmological constant while preserving the standard thermal history of the Universe.
The paper argues that all dynamical astrophysical black hole merger channels converge to a universal high-eccentricity distribution at LIGO/Virgo/KAGRA frequencies due to the large separation of scales between the gravitational-wave regime and the formation environment, a finding supported by analytical solutions that align with numerical studies.
This paper investigates how local physics emerges in perturbative quantum gravity on de Sitter space by constructing gauge-invariant relational observables that approximate local field algebras, revealing that while this approximation is limited near minimal spheres to logarithmic time intervals, it remains valid over arbitrarily large regions in the far future or past, including entire static patches.
This paper revisits the Newman-Unti-Tamburino (NUT) solution by establishing its uniqueness as the sole Petrov Type D vacuum metric with integrable principal null directions through a coordinate-free analysis of Newman-Penrose integrability conditions.
This paper demonstrates that incorporating higher-order curvature corrections (such as and ) into the Starobinsky inflationary model resolves its mild tension with recent P-ACT-LB-BK18 data while imposing new constraints on post-inflationary dynamics.