3805 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 constructs and analyzes static multipolar black hole solutions in Einstein-vector-Gauss-Bonnet theory with quadratic coupling, revealing that electric branches extend to large coupling values while magnetic branches exist only on finite intervals, with both sectors bifurcating from Schwarzschild black holes at discrete coupling values determined by angular multipole numbers.
This paper reformulates the moving mirror model of black hole evaporation using Rindler/Milne modes to naturally incorporate partner modes, attribute required approximations to mode squeezing, and reveal nontrivial quantum correlations in the radiation spectrum beyond standard thermal distributions.
This paper proposes and analyzes static, spherically symmetric traversable wormhole solutions in Kalb-Ramond gravity supported by Einasto dark matter, demonstrating that the required Lorentz symmetry breaking and exotic matter can be localized near the throat while satisfying geometric, energetic, and observational constraints.
This paper argues that Holographic Space Time models of black hole formation and evaporation do not exhibit the "memory burden" effect claimed in recent literature, as the specific definitions of energy and causality in these models, combined with Fermi's Golden Rule, prevent such macroscopic constraints on black hole lifetimes.
This paper introduces a general framework for constructing coherent quantum states of diagonalizable metrics to demonstrate that the normalizability of such states in de Sitter spacetime necessitates the use of reference frames free from coordinate singularities.
This paper validates the standard interpretation of a point particle's mass in 2+1-dimensional AdS gravity as the angular deficit of the asymptotic geometry by approximating the singular source with a regular distribution, demonstrating that while the resulting limiting mass is distinct from the BTZ mass parameter, it correctly represents the additive local mass of the object.
This paper extends the renormalization analysis of Holdom's shift-symmetric four-derivative scalar field theories to three loops, proving the all-order IR finiteness of Euclidean correlators and establishing a non-renormalization theorem that links the theory's beta function to that of an -symmetric theory at negative coupling, thereby determining its renormalization group properties up to six loops.
This paper presents a rigorous, coordinate-independent framework for studying junctions in torsional spacetimes by extending distribution theory to curved manifolds with torsion, thereby deriving general differentiability conditions and applying them to Einstein-Cartan-Sciama-Kibble gravity to overcome the limitations of the traditional coordinate-dependent Israel-Darmois formalism.
This paper establishes that boundary mutual information imposes a rigorous, logarithmically diverging lower bound on bulk geodesic separation, which, through multiscale iteration, acts as a global obstruction to connectivity and necessitates a quantum resolution of classical mutual-information transitions in AdS/CFT.
This paper demonstrates that a magnetic vortex induces an emergent Ellis wormhole geometry for electrons, producing distinct experimental signatures such as universal deflection patterns and parity-dependent Aharonov-Bohm responses that can be observed in quantum materials and designer honeycomb lattices.