2593 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 soliton methods to derive the most general rational boundary data on the symmetry axis for aligned, rotating, and charged black holes, thereby reducing the complex problem of finding stationary equilibrium configurations to analyzing a finite-parameter family of candidate solutions.
This paper demonstrates that photons traversing a localized gravitational wave pulse in a pp-wave spacetime experience a finite, path-dependent energy memory effect that induces a permanent frequency shift, potentially offering an explanation for divergent supernova redshift observations.
This paper demonstrates that promoting the Mixmaster model to a quantum level via Deformed Commutation Relations, inspired by Loop Quantum Gravity and String Theory, eliminates its classical chaotic behavior by causing the dynamics to either oscillate between two angles or transition directly to a Kasner solution after a finite number of iterations.
This paper proposes that the universal galactic acceleration scale arises from a trace-anomaly-induced infrared spectral gap in a coherent, color-neutral gluonic dark sector governed by Anti de Sitter symmetry, which generates a characteristic acceleration scale within standard Newtonian gravity without requiring modified gravity or specific formation histories.
This paper demonstrates that the state-counting interpretation of black hole entropy and the unitary Page curve for Hawking radiation are equivalent within the gravity path integral framework, showing that the information loss paradox is resolved by any microstate basis compatible with black hole entropy via a convex optimization problem for von Neumann entropy.
This paper computes the energy density of scalar-tensor-induced gravitational waves (STGWs) generated during early matter-dominated and radiation-dominated eras, demonstrating that while these signals dilute in a purely matter-dominated universe, they remain viable and potentially dominant contributors to the nanohertz stochastic gravitational wave background observed by NANOGrav and detectable by the future Square Kilometre Array.
This paper presents a systematic calculation of non-dissipative, quantum-origin second-order hydrodynamic corrections to the stress-energy tensor and currents for free boson and Dirac fields in thermal vorticity, deriving their Kubo formulae via equilibrium correlators and demonstrating that the axial current receives vorticity-proportional corrections independent of anomalous terms.
The paper demonstrates that the standard low-energy effective field theory of quantum gravity predicts unobservably small vacuum fluctuations in interferometers, implying that any future detection of large gravitationally-induced length variations would signal a fundamental breakdown of this theory.
This paper reports a 100-fold improvement in sensitivity for detecting new gravity-like forces at micrometer scales using optically levitated microspheres, establishing the first multi-component vector force measurements and setting stringent new upper limits on Yukawa-type interactions in the 5–10 μm range.
This study extends the material medium approach to the Kerr-Sen black hole spacetime in heterotic string theory by deriving the refractive index from frame-dragging effects to calculate and compare the gravitational deflection of light with Kerr and Schwarzschild solutions.