3285 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 employs the Dyson-Schwinger technique to analyze de-Sitter, quadratic , and non-minimally coupled scalar gravity theories, identifying conformally flat metric solutions and demonstrating how non-minimal coupling can hinder a sequence of cosmological phase transitions originating from conformal symmetry breaking.
This paper investigates non-perturbative quantum gravitational corrections to the thermodynamics of -dimensional Schwarzschild–Tangherlini–Anti-de Sitter black holes, revealing that these effects induce a Hawking–Page transition, suppress specific heat magnitude, and reverse the sign of average quantum work during evaporation, thereby qualitatively altering the phase structure and energetics beyond what perturbative corrections can capture.
This paper investigates how singular and non-singular gravitational fields (specifically Reissner-Nordstrom, Hayward, and Simpson-Visser metrics) modulate CP violations in neutrino flavor oscillations, demonstrating that the resulting changes in oscillation amplitudes and periods encode information about neutrino mass properties and spacetime characteristics.
This paper presents a unified thermodynamic framework for zero-temperature boson gases in curved spacetime by integrating the ADM formalism with information-theoretic principles to derive coupled energy balance and Fisher entropy constraints, thereby linking quantum stochasticity to spacetime fluctuations and offering new insights for boson stars and scalar field dark matter.
This paper demonstrates that while the entanglement entropy of massive scalar fields in the ground state follows a robust area law with exponential mass suppression, localized excited states violate universal $mR$ scaling due to the interplay between the field mass and the excitation's finite width, suggesting that black hole thermodynamics in semiclassical gravity may depend on multiple independent infrared scales.
This study investigates four distinct bouncing cosmological models within the framework of modified gravity, demonstrating that the dynamics of the scale factor and Hubble parameter support these scenarios while the equation of state enters the phantom region and the null energy condition is violated at the bounce.
This paper investigates the thermodynamic phase transitions between Schwarzschild black holes and scalarized solutions in Einstein-scalar-Gauss-Bonnet gravity, revealing that the nature of the transition (ranging from nonexistent to first- or second-order) is critically determined by the specific form of the scalar-Gauss-Bonnet coupling function.
This paper addresses the gauge inconsistencies in previous analyses of dust-shell dynamics by developing a systematic method for selecting consistent gauge conditions in effective quantum gravity, demonstrating that standard gauges like Painlevé-Gullstrand and Schwarzschild are incompatible with dust shells and verifying the new framework's agreement with Israel junction conditions.
This paper demonstrates that standard weak lensing formalisms are incomplete beyond linear order by deriving and numerically quantifying second-order relativistic corrections—specifically Sachs-basis rotation and frame-dragging effects—which break the degeneracy between rotation and shear B-modes and dominate the B-mode power spectrum on large scales, despite their overall small impact on observed galaxy ellipticity.
This paper establishes a comprehensive comparison theory for globally hyperbolic spacetimes with locally Lipschitz metrics and distributional Ricci curvature bounds, proving key results such as the timelike measure contraction property, sharp comparison theorems (including d'Alembert, Brunn-Minkowski, and Bishop-Gromov), and a Bonnet-Myers inequality, while extending classical Riemannian theorems to impulsive gravity waves and other low-regularity Lorentzian geometries.