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 presents a stable, fourth-order convergent time-domain numerical framework for global scalar wave scattering in Minkowski spacetime that utilizes exact conformal matching of three compactified regions to connect past and future null infinity with spatial infinity, successfully handling linear and certain nonlinear potentials while revealing specific boundary regularity limitations for cubic nonlinearities.
This theoretical study investigates the potential link between black hole quasi-periodic oscillations (QPOs) and thermodynamic phase transitions by analyzing how QPO frequencies vary with Hawking temperature in RN AdS and Kerr black hole backgrounds, suggesting that while observational data is currently lacking, changes in black hole geometry may influence QPO behavior.
This paper presents a robust, GPU-accelerated time-frequency search pipeline capable of detecting and characterizing stellar-mass binary black hole inspirals in LISA data with high efficiency and resilience to noise and data gaps.
This paper investigates the viability of mutated hilltop, D-brane, and Woods-Saxon inflationary models within a minimally coupled gravity framework, demonstrating that specific parameter spaces for these models can satisfy current observational constraints from Planck, BICEP/Keck, DESI, and ACT.
This paper employs CUDA-accelerated machine learning to constrain non-commutative black hole parameters by analyzing shadow behaviors and energy emission rates, ultimately demonstrating that the proposed model is consistent with Event Horizon Telescope observations of the black hole.
This paper presents a new exact solution to Einstein's field equations that unifies the Kerr black hole with FLRW cosmology, predicting a stationary mass with a contracting ergosphere and event horizon relative to the expanding universe while generalizing the McVittie metric to rotating masses.
This paper establishes a comprehensive theoretical framework for open quantum systems coupled to scale-invariant "unparticle" environments, deriving exact non-Markovian dynamics and identifying a rich phase structure of decoherence and thermalization transitions governed by the scaling dimension , with applications ranging from critical quantum magnets and inflationary cosmology to high-energy astrophysical neutrinos.
Through long-term numerical-relativity simulations, this study demonstrates that isolated neutron stars with initial mixed magnetic fields dynamically relax into stable configurations where the toroidal component contributes less than 10% of the total magnetic energy, a process driven by Tayler instabilities and gravitational-wave emission that constrains the long-term evolution of pulsar and magnetar magnetic fields.
This paper demonstrates that collapsing domain walls generically develop robust cuspidal edge and vertex singularities, a phenomenon predicted by Nambu-Goto and eikonal approximations and confirmed by full field theory simulations, which has significant implications for localized energy density and potential phenomenological effects.
This paper presents a GPU-accelerated, 1000-fold faster version of the gwcosmo pipeline that enables scalable, population-level dark-siren cosmological inference for future large-scale gravitational-wave catalogues within hours.