2593 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 extends Jacobson's thermodynamic derivation of gravity by introducing a novel entropy functional incorporating quantum horizon properties, which yields a modified gravity theory that resolves early-universe singularities through a nonsingular de Sitter phase and reproduces loop quantum cosmology dynamics at late times.
This paper investigates spin-0, 1, and 1/2 field perturbations of four-dimensional Einstein-Skyrme anti-de Sitter black holes by computing quasinormal modes, greybody factors, and strong cosmic censorship parameters, revealing a Konoplya-Zhidenko anomaly in the first overtone and demonstrating that the Christodoulou parameter remains well below the censorship threshold due to the theory's intrinsic constraints.
This paper investigates homothetic Killing vectors in generic Vaidya-like spacetimes, demonstrating that such vectors exist under specific linear parameter conditions, which allows for the conformal mapping of dynamical spacetimes to stationary ones to facilitate the study of homothetic Killing horizons, their thermodynamic properties, and particle creation.
This paper utilizes gravitational wave observations of the GW241011 event to simultaneously test deviations in the spin-induced quadrupole and octupole moments of compact binary components, finding no evidence against the Kerr hypothesis and establishing the first constraints on spin-induced octupole moments.
This paper establishes Birkhoff rigidity in four-dimensional spherical vacuum gravity by deriving a local seed-to-Kerr-Schild route that demonstrates Schwarzschild is the unique spherically symmetric stationary vacuum Kerr-Schild geometry generated by a nowhere-vanishing optical seed.
This paper utilizes the covariant phase space formalism to derive conserved charges for supergravity formulated as a constrained BF theory, demonstrating that while translational charges vanish on-shell due to super-torsion constraints, the remaining boundary charges successfully reproduce the expected superalgebra.
This paper derives an exact static, spherically symmetric black hole solution within Born-Infeld-f(R) gravity and analyzes its thermodynamic properties, revealing novel behaviors that significantly deviate from standard general relativity predictions.
This paper proposes an analytic formalism for a non-minimally coupled inflationary model involving derivative interactions between gravity and a scalar field, demonstrating that it successfully generates scalar spectral index and tensor-to-scalar ratio values consistent with ACT and Planck observations across a wide range of inflaton potentials without encountering singularities in the slow-roll regime.
This paper demonstrates that a single scalar function, derived from the analytically continued membrane-paradigm pressure of the Kerr-Newman black hole, serves as a unified global detector that simultaneously encodes the locations of all critical geometric surfaces—including horizons, stationary limits, singularities, and asymptotic infinity—while also admitting an interpretation as a generalized van der Waals equation of state.
This paper derives the entropy covector field and analyzes macroscopic observables for collisionless relativistic kinetic gases around a Schwarzschild black hole, revealing significant morphological and asymptotic differences between rotating and non-rotating configurations driven by the role of angular momentum.