3932 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 demonstrates that a closed bosonic string propagating near a five-dimensional Schwarzschild black hole acts as a dynamical probe of BMS supertranslations, as the resulting anisotropic geometric distortions break the background's angular symmetry and induce characteristic string spreading.
This paper proposes extending the "Harmonic Background Paradigm" into the non-linear regime, suggesting that gravity functions as a hierarchy of causal cones where matter is "screened" by surrounding clouds of negative energy.
This paper proposes a geometrical method for analyzing transient gravitational waves to evaluate the performance and sensitivity of next-generation detector configurations like Cosmic Explorer, the Einstein Telescope, and the South American Gravitational-wave Observatory.
This paper uses the multi-messenger event GW170817 to test General Relativity by applying the parameterized post-Einsteinian framework to search for scalar polarization modes, demonstrating that incorporating electromagnetic polarization angle constraints significantly improves the bounds on non-GR parameters.
This paper demonstrates that the spin locations of local minima in the frequency gaps between adjacent Kerr black hole overtones drift depending on the specific pair of modes being compared, a phenomenon explained by treating the minimum as a local geometric turning event of the complex separation vector.
The paper introduces **SWIM** (Stochastic Warm Inflation Module), a C++/Python-based numerical platform that enables the generation of fully numerical scalar power spectra for any warm inflation model and integrates with Cobaya to facilitate efficient parameter estimation against cosmological data using machine learning techniques.
This paper investigates gravitational wave amplitude birefringence induced by the coupling of fuzzy dark matter to the Chern-Simons term, finding that the effect is characterized by a frequency-dependent enhancement/suppression of circular polarizations and a periodic time modulation reflecting the dark matter mass.
Inspired by insights from effective field theory and non-Abelian gauge theory, this contribution argues that the post-Newtonian approximation may fail for extended rotating bodies due to non-local angular momentum effects and proposes a novel effective field theory of general relativity to remedy this failure.
This paper investigates the thermodynamics and phase structure of a deformed AdS-Schwarzschild black hole generated via gravitational decoupling, demonstrating how the deformation parameter drives diverse phase transitions in both the bulk and its dual conformal field theory across various thermodynamic ensembles.
This contribution develops a covariant, gauge-invariant framework for deriving linear perturbation equations on an averaged cosmological background driven by backreaction effects and demonstrates that neglecting the coupling between structure formation and effective fluid perturbations can lead to distorted predictions, even in models that successfully fit background observational data.