2489 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 how dynamic mass variations and the presence of a stable photon sphere near extremal black holes alter orbital periapsis shifts, demonstrating that these qualitative changes in strong-field orbital behavior serve as a viable experimental probe for the Weak Gravity Conjecture.
This paper proposes a Hamiltonian formalism for gravitational dynamics in a coherent state basis that describes how non-orthogonal quasiclassical geometries evolve into superpositions, offering a mechanism for geometry tunneling and suggesting a path to preserving unitarity during black hole evaporation through quantum corrections.
This paper provides a semi-analytic study of the Nariai limit in Kerr-de Sitter and Myers-Perry black holes to demonstrate that massive scalar field quasinormal modes form an exceptional line in parameter space, leading to unique excitation phenomena such as destructive interference and transient linear growth near these double-pole frequencies.
This paper employs a dynamical systems framework to demonstrate that while localized potential perturbations cause black hole resonant spectra to deform continuously toward hard-wall attractors, the presence of repelling points near unperturbed resonances induces a non-linear instability that invalidates linearized approximations for weak perturbations.
This paper proposes a selection criterion to determine when computationally cheaper gravitational wave models can replace more expensive, accurate ones without biasing population estimates, potentially reducing analysis costs by up to 78% for astrophysically motivated populations.
This paper presents preliminary measurements of Earth's angular velocity using TRIO, a new transportable ring laser gyroscope prototype with a 1.52 m side length, to evaluate its performance and validate the design for the upcoming large-scale GINGER project at the Gran Sasso underground laboratory.
This paper investigates a dyonic Kalb-Ramond black hole pierced by a cloud of strings within Lorentz-violating gravity, utilizing MCMC analysis of twin-peak QPOs and EHT shadow data to constrain its parameters while comprehensively mapping its geodesic dynamics, thermodynamic properties, and radiative observables.
This study constrains an exponential gravity model using CMB, DESI-DR2, and supernova data, finding that while it fails to resolve the tension, it offers a moderate alleviation of the tension and improves the description of large-scale structure formation.
This paper introduces a computationally efficient frequency-domain implementation of the SEOBNRv5THM waveform model for binary neutron star systems that combines the stationary-phase approximation with fast Fourier transforms to enable accurate, fast parameter estimation for long gravitational-wave signals within practical runtimes.
This paper presents a comprehensive framework demonstrating that primordial black holes captured by stars can either quietly consume the host or trigger explosive stellar disruption via accretion disk formation, producing distinct transient signals that offer a new probe for asteroid-mass dark matter and subsolar black hole mergers.