2558 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 investigates the tidal forces and Roche limits for various stellar objects within the Simpson--Visser spacetime, comparing static and infalling observers to determine how the black bounce regularization affects tidal disruption and the observability of these events for astrophysical black holes like M87* and Sgr A*.
This paper establishes a mathematical correspondence between the electric and magnetic components of the Weyl tensor in vacuum general relativity and the kinematics of a Cosserat elastic medium, thereby reinterpreting gravitational memory as topological dislocation charges within an effective, coarse-grained description of spacetime.
This paper introduces the orbital nodal phase, , as a pipeline-invariant quantity for accreting black hole timing that provides a robust Kerr-baseline diagnostic, isolates genuine metric sensitivity from trivial radius drift, and can be directly reconstructed from standard quasi-periodic oscillation frequencies.
This study analyzes the Pantheon+ Type Ia supernova sample and finds a residual hemispherical anisotropy in the deceleration parameter that persists even after standard CMB dipole corrections, suggesting the presence of a local bulk flow not fully captured by current peculiar velocity models which contributes to systematic uncertainties in low-redshift cosmology.
This paper investigates the polarization of direct images from accretion disks around rotating Kerr black holes with synchronized scalar hair, revealing that the massive scalar field induces a dephasing in the polarization vector's twist—most notably in weakly scalarized solutions—and that vertical magnetic fields at high inclinations can cause a characteristic reversal in this twist direction.
This paper demonstrates that in a strictly static spacetime wormhole, the magnetic-type tidal Love number for vanishes under axial gravitational perturbations when the solution is approximated to linear order in the geometry's regularisation parameter.
This paper demonstrates that multi-gluon and multi-graviton radiation in strong field shockwave scattering can be modeled as generalized Susskind-Glogower squeezed coherent states via the QCD-Gravity double copy, revealing that large squeezing parameters in nearly minimal uncertainty configurations could produce gravitational wave quantum noise exceeding the sensitivity of current and future detectors.
This paper establishes that solutions to the linear wave equation on radially symmetric stationary perturbations of (2+1)-dimensional Minkowski space exhibit late-time tails decaying as by extending -weighted energy estimates and adapting physical space techniques from prior work on Schwarzschild spacetime.
This paper establishes a fully general relativistic framework for analyzing non-radial polar oscillations in gravitationally coupled two-fluid neutron stars by deriving the necessary perturbation equations and boundary conditions, then numerically computing mode spectra to classify fundamental and pressure modes based on their fluid character.
This paper investigates the quantum dynamics of scalar bosonic oscillator fields in a Lorentz-violating wormhole spacetime, demonstrating how a nonminimally coupled vector background generates an effective interaction that yields a discrete, symmetric energy spectrum governed by curvature and Lorentz-violation parameters within a confluent Heun framework.