3826 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 employs a dynamical systems approach to demonstrate that while localized potential perturbations cause black hole resonant spectra to deform continuously toward hard-wall attractors, weak perturbations can induce non-linear instability near unperturbed resonances due to the influence of nearby repelling spectral points.
This paper proposes that a lunar-based laser interferometer, such as LILA, can uniquely constrain the sound speed of dark energy by measuring horizon-scale gravitational potentials in the ultra-low-frequency band, thereby offering unprecedented sensitivity to the microphysics of cosmic acceleration.
This paper demonstrates that in multi-horizon black hole solutions arising from Einstein gravity coupled to nonlinear electrodynamics, nonlinear electromagnetic corrections induce multiple tidal-force sign reversals and create classically forbidden bounce-back regions that can prevent neutral particles from reaching the singularity or even crossing the event horizon, with these tidal structural changes occurring hierarchically before modifications to the horizon configuration.
This paper introduces a Bayesian P-spline method for estimating multivariate spectral density matrices using a Cholesky-based parametrization and Whittle likelihood inference, demonstrating its superior accuracy over diagonal assumptions in recovering cross-spectral structures within LISA time-delay interferometry noise.
This paper investigates the Joule-Thomson expansion and geodesic structure of charged anti-de Sitter black holes within modified gravity coupled with nonlinear electrodynamics, revealing that the black hole charge primarily governs the Joule-Thomson behavior while nonlinear electromagnetic and gravity parameters introduce significant corrections to inversion temperatures and cooling characteristics.
This paper reviews the complex journey of developing numerical solutions to Einstein's equations, highlighting how the mid-2000s breakthrough in solving the general relativity two-body problem was essential to the 2015 LIGO discovery of gravitational waves.
This paper demonstrates that classical self-gravity, as described by Schrödinger-Newton theory, introduces state-dependent corrections to continuous quantum state tomography that can drive reconstructed covariances beyond standard quantum limits, thereby providing a measurable signature to distinguish between classical and quantum gravity.
This paper introduces a flexible mixture-model framework to test General Relativity using GWTC-4.0 data, revealing that while current observations remain consistent with GR, the significantly lower Bayes factors compared to standard analyses highlight the necessity of adopting more adaptable models to avoid biasing evidence against potential deviations.
This paper estimates the dynamical impact of vortex reconnections in Bose-condensed and superfluid dark matter halos by combining local reconnection laws with halo-scale simulations to determine how kinetic energy is converted into dark phonons and other excitations, while noting that observable luminosity would require additional portal physics beyond the minimal model.
This paper proposes a Starobinsky supergravity framework coupled to the MSSM that simultaneously explains the observed Higgs boson mass through three-loop renormalization-group evolution and predicts a 3 TeV thermal wino dark matter candidate with a disappearing-track signature detectable by future 100 TeV colliders.