3784 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 establishes a comprehensive coincident gauge framework for cosmology with arbitrary spatial curvature by constructing coordinates from cosmological Killing vectors, thereby correcting previous literature flaws, unifying flat and curved solutions with metric teleparallel models, and clarifying the roles of diffeomorphism and local Lorentz invariance.
This paper investigates the classical Hamiltonian dynamics of Loop Quantum Gravity on a simplified "candy graph" structure, demonstrating that the evolution of bulk link areas reduces to a pair of non-linear differential equations with analytical solutions exhibiting both oscillatory and divergent behaviors.
This paper computes the static tidal response of unspinning charged black holes by generalizing Love numbers to Love matrices, revealing that quantum vacuum fluctuations induce a running tidal response governed by the gauge coupling beta function, which saturates in the strong-field regime and offers a potential gravitational-wave probe for nearly-extremal magnetic black holes in dark sectors.
This paper derives the rank-two string-Carroll limit of spin hydrodynamics to demonstrate how curvature-driven forces and longitudinal spin fluxes govern stationary matter profiles near black hole horizons, revealing specific tidal inversion points where the response vanishes in Reissner–Nordström and Einstein–Maxwell–dilaton spacetimes.
This paper introduces a worldline effective field theory formalism using closed time path integrals to systematically derive universal equations of motion for the gravitational self-force on compact objects in diverse environments, successfully recovering known dissipative and conservative forces while reinterpreting Chandrasekhar's "Coulomb Log" as a universal renormalization group log arising from ultraviolet divergences.
This paper investigates a -deformed Schwarzschild-anti-de Sitter black hole surrounded by quintessence, revealing that the mass-dependent deformation creates an inner Cauchy horizon and intensifies the central singularity while necessitating modified entropy or mass rescaling to restore thermodynamic consistency, and uniquely decoupling Joule-Thomson inversion from van der Waals criticality alongside a significant suppression of Hawking emission.
This paper extends the -bein formalism to quantum systems with degenerate spectra by defining a non-Abelian two-state quantum geometric tensor and a torsion-like tensor to characterize state transitions and noncommutativity, ultimately applying this framework to analyze correlations in coupled harmonic oscillators within an electric field.
This paper presents the first exact class of anisotropic, zero-complexity compact star models in -dimensional Einstein gravity by extending Herrera's complexity formalism to higher dimensions within the Finch-Skea geometric background, demonstrating that extra dimensions significantly modify stellar structures while maintaining physical viability.
This paper proposes a real scalar field model with a non-standard potential to describe dark matter spikes around supermassive black holes like Sgr A and M87, reverse-engineering the potential to match desired density profiles and enabling the study of testable geometric effects and gravitational perturbations including backreaction.
This paper demonstrates that two individually subcritical thin matter shells surrounding a static black hole can collectively trigger matter-induced scalarization through a finite-rank instability condition, leading to the formation of a critical scalar cloud.