3256 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 demonstrates that the ground state of nonrelativistic Proca stars is always mode-stable and identifies several stable spherically symmetric excited states, suggesting potential implications for spin-1 ultralight dark matter models.
This paper constructs holographic tensor network models based on partial-entanglement-entropy (PEE) thread tessellations of AdS space, demonstrating that assigning quantum states to network vertices reproduces the exact Ryu-Takayanagi formula by equating minimal surface cuts with geometric area.
This paper constructs a purely geometrical, metric-like formulation of the non-relativistic limit of bosonic supergravity based on a torsionless connection with non-vanishing non-metricities, which enables a manifestly covariant decomposition of relativistic curvature tensors and establishes an equivalence with string Newton–Cartan geometry while facilitating applications such as deriving -corrections and extending to general geometries.
This review summarizes current observational constraints on primordial black holes (PBHs) across the full mass range, discusses their formation scenarios and mass functions, highlights potential evidence for their existence as dark matter, and outlines future search prospects, particularly through gravitational-wave observatories.
Using holography, this paper provides a fully microscopic description of critical bubbles in a strongly coupled gauge theory by constructing unstable black-brane solutions, demonstrating that while effective actions derived from the microscopic theory agree with these results, those based solely on the equation of state and dimensional analysis require an additional surface tension constraint to resolve significant discrepancies.
This paper demonstrates that the vanishing of static tidal Love numbers in four-dimensional black holes is a structural consequence of a common near-zone truncation mechanism, where horizon regularity forces static solutions into highest-weight representations that eliminate independent decaying branches, thereby excluding static Wilson coefficients and generating a graded algebra of logarithms and zeta values that precludes any static invariant.
This paper presents a new analytic model of a force-free electromagnetic jet launched from a disk-fed rotating black hole, demonstrating that the jet exhibits an asymptotically parabolic structure and key Blandford-Znajek features with negligible dependence on disk parameters, suggesting a universality for slowly rotating black hole jets.
This paper presents 3D numerical simulations of an unstable Ellis-Bronnikov wormhole collapsing under controlled perturbations, revealing a violent "phantom bounce" that emits gravitational waves detectable by future observatories but currently below Advanced LIGO's sensitivity for moderate sources.
This paper revisits the Friedmann cosmological solution to propose that the Big Bang curvature singularity can be eliminated using a degenerate spacetime metric, while also exploring the emergence of CPT-conjugated worlds and the relevance of an extended version of Einstein's field equations.
This paper demonstrates that within the framework of unimodular gravity, Maxwell electrodynamics can serve as a source for regular black strings and BTZ black holes, where the cosmological constant emerges as a radial-dependent vacuum contribution derived from the non-conservation of the energy-momentum tensor.