2677 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 neglecting higher-order waveform modes in massive black hole binaries can lead to significant systematic biases in parameter estimation for LISA, particularly noting how progenitor spins influence these errors and how they can severely mis-infer sky localization for the heaviest systems.
This paper demonstrates that single-graviton detection enables the characterization of the quantum state and particle statistics of gravitational waves, allowing for the discrimination between different radiation types and the performance of full quantum state tomography.
This paper investigates how an early dark energy scalar field coupled to radiation modifies the cosmic microwave background temperature-redshift relation and the sound horizon, ultimately using Planck data to place constraints on the coupling strength of such interactions.
This paper proposes a new transition parameterization of the $Om(z)$ diagnostic to investigate dynamical dark energy, finding that observational data suggests a transition from a quintessence-like to a phantom regime and yielding a Hubble constant value consistent with SH0ES measurements.
This paper introduces a new mathematical framework combining spectral and split representations to factorize multi-loop diagrams in de Sitter space, enabling the resummation of massive scalar loop contributions and the direct identification of cosmological collider signals.
This paper proposes that the Schwarzschild black hole singularity can be resolved by applying non-perturbative string theory corrections to the BKL-transformed interior, which treats the singularity as an anisotropic Kasner universe described by the invariant Hohm-Zwiebach action.
This paper proposes a computationally efficient strategy to extract tidal deformability parameters from the final seconds of a binary neutron star merger's late inspiral, aiming to provide fast measurements that can help prioritize electromagnetic follow-up observations.
This paper derives new constraints on the primordial curvature power spectrum within the previously underexplored small-scale regime of by utilizing recent theoretical advancements in black hole physics and existing limits on the initial mass fraction of light primordial black holes.
This paper develops a compact analytical framework to describe how time-varying mass in spherically symmetric spacetimes (such as Vaidya spacetimes) shifts the photon sphere and modifies the observable black hole shadow through a force-decomposed radial equation and a gauge-invariant energy-flux relation.
This paper demonstrates that incorporating orbital eccentricity into localization algorithms can significantly improve the sky localization accuracy of gravitational wave detections, potentially enhancing the effectiveness of early-warning systems and electromagnetic follow-up observations.