3949 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 the CHRONOS torsion-bar detector, utilizing a differential gravitational calibrator to cancel Newtonian torque, can probe Yukawa-type deviations from Newtonian gravity with a sensitivity of at an 8-meter range, a performance ultimately limited by systematic uncertainties in source-mass geometry rather than statistical noise.
This paper introduces new generating theorems in General Relativity to derive a class of anisotropic, static, spherically symmetric solutions for modeling compact stellar interiors, with a specific focus on a constant-density geometry that serves as an incompressible limit comparable to the Bowers-Liang spacetime.
This paper proposes a tabletop detector model using a charged array of quantum harmonic oscillators in a cavity, where pumping with low-frequency photons enhances transition probabilities to enable the absorption or emission of single gravitons accompanied by photon exchange, thereby offering a potential method to "visualize" quantum spacetime ripples.
This paper establishes a mathematical link between special relativistic and generalized Kepler models by demonstrating that solutions to the former with fixed energy can be reparameterized as solutions to the latter, which features an additional potential term analogous to the Levi-Civita correction.
This paper derives new analytic static black hole solutions in dark photon models with higher-order magnetic dipole interactions, demonstrating how spin-dependent terms and massive dark photon effects significantly modify horizon properties, Hawking temperature, and black hole shadows to enable future phenomenological tests via gravitational wave astronomy and imaging.
This paper investigates two models of interacting scalar fields in Einstein scalar Gauss-Bonnet gravity as unified dark energy and dark matter candidates, demonstrating that while they align with current supernova data and the CDM model, they show a statistically significant preference over CDM when incorporating future Roman Space Telescope mock data at higher redshifts.
This paper resolves contradictions regarding Maldacena-Shenker-Stanford chaos-bound violations in black hole spacetimes by establishing a self-consistent framework that distinguishes between apparent violations caused by inconsistent angular momentum parameter choices and genuine physical violations arising from higher-order curvature corrections.
This paper constructs four-dimensional de Sitter space as an excited Glauber-Sudarshan state within M-theory and its dual heterotic string theories to evade vacuum-based no-go theorems, deriving the necessary effective field theory conditions equivalent to the null energy condition and analyzing constraints from axionic cosmology.
This paper proposes that in curved spacetime, probability acquires a fundamentally quasilocal character where gravitational boundaries and horizons convert global conservation into a flux balance law, inducing effective non-Hermiticity for restricted observers while preserving global unitarity and yielding observable imprints in black hole ringdowns.
This paper proposes a new mechanism to solve the cosmological constant problem by utilizing a global constraint derived from a lapse function in a 5-dimensional anisotropic gravitational theory, which successfully cancels radiative contributions to vacuum energy at all orders while preserving 4D Lorentz invariance.