3255 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 presents a novel formulation of four-dimensional linearised gravity as a Lorentz-covariant edge mode of a five-dimensional topological field theory, thereby achieving a democratic treatment of electric-magnetic duality by leveraging the field's realization as a singleton representation of the conformal algebra .
This paper constructs rotating thin shell solutions in Einstein-Gauss-Bonnet gravity by gluing two spacetimes with different mass and angular momentum parameters, deriving their equations of motion and analyzing the stability and collapse dynamics of both general and vacuum shells, including cases that lead to naked singularities.
This paper develops computational methods to characterize fully relativistic signatures of scalar dark matter clouds in extreme-mass-ratio inspirals, revealing that polar sector corrections can dominate dissipative effects and significantly alter gravitational wave dephasing, thereby motivating their inclusion in future detection templates.
This paper investigates the thermodynamics of five-dimensional Chern-Simons AdS black holes coupled to SU(2) solitons using a minisuperspace approximation, demonstrating that the entropy receives nontrivial contributions from axial and trace-torsion modes while satisfying the first law of black hole thermodynamics.
This paper introduces "GreyRing," a highly accurate ringdown model based on black hole greybody factors that enables a novel, agnostic consistency test of general relativity by comparing remnant mass and spin inferred from the post-merger signal alone, demonstrating its effectiveness and precision on the GW250114 event.
This paper calculates the response of an Unruh--DeWitt detector in a superposition of BTZ black hole locations, demonstrating how Quantum Reference Frame transformations reveal nonclassical measurement contributions and distinguishing this scenario from mass-superposed black holes through spectral singularities.
This paper introduces pyEFPEHM, an improved post-Newtonian inspiral waveform model for eccentric, spin-precessing compact binaries that incorporates higher-order modes, matter effects, and enhanced quasi-circular corrections, offering a robust and efficient tool for gravitational-wave analysis across a broad parameter space while acknowledging limitations in extreme regimes.
This paper investigates gravitational lensing by Bardeen-like regular black holes without Cauchy horizons, demonstrating that while weak-field predictions align with current observations of ESO 325-G004, strong-field measurements of relativistic images around Sgr A* and M87*—specifically the angular separation, flux ratio, and time delays—could distinguish these models from Schwarzschild black holes through future observations.
This paper presents a hybrid study of scalar-field cosmology that combines dynamical-systems techniques with averaging reductions to analyze late-time behavior and prove stability under perturbations, while also deriving exact quadrature solutions for various relativistic settings to enable analytic computation of inflationary observables.
This paper employs soliton methods to derive the most general rational boundary data on the symmetry axis for aligned, rotating, and charged black holes, thereby reducing the complex problem of finding stationary equilibrium configurations to analyzing a finite-parameter family of candidate solutions.