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 proposes a no-scale Brans-Dicke gravity model that eliminates unwanted long-range forces by removing dimensionful parameters, while simultaneously providing a heavy inflaton consistent with Starobinsky-like inflation that predicts dark radiation and supports successful leptogenesis.
This paper develops a model-independent effective field theory (EFT) that unifies various inflationary models involving gauge fields to demonstrate that the production of parity-violating chiral gravitational waves is a generic and inevitable consequence of such gauge field backgrounds.
This paper proposes a protocol to extract spatiotemporal entanglement from the vacuum of Minkowski spacetime using two detectors with time-scaled frequencies, potentially enabling quantum teleportation through the vacuum state.
This study utilizes the numerical-relativity code BAM to demonstrate that fully relativistic simulations of multi-black-hole encounters (binary-single and binary-binary) reveal complex dynamical outcomes and unique gravitational-wave signatures that differ significantly from post-Newtonian approximations.
This paper uses a holographic approach to demonstrate that, for boundary theories with two or more dimensions, scale invariance implies conformal invariance provided the bulk extra dimension is compact and the null energy condition is satisfied, identifying the bulk Weyl tensor as the key mathematical differentiator.
This paper investigates the phenomenological implications of quantum gravitational corrections on stellar spacetimes by analytically deriving modifications to classical observables—such as light deflection, perihelion advance, and Shapiro delay—and analyzing the resulting effects on quasinormal modes and greybody factors.
This study investigates how non-minimal coupling between dark matter and a scalar field dark energy affects the gravitational collapse of overdense regions, finding that certain initial conditions can prevent collapse and cause regions to expand eternally with the background.
This paper investigates whether adjusting the signal-recycling mirror's detuning angle in the GEO600 interferometer can enable the detection of high-frequency gravitational waves in the kilohertz range, a capability that current LIGO configurations lack due to their optical design.
This paper investigates the gravitational potential in quadratic gravity for various spherically symmetric matter distributions, demonstrating that the resulting Yukawa-type corrections provide a better fit for the rotation curve of the galaxy NGC 3198 in its inner regions compared to standard Newtonian gravity.
This paper demonstrates that self-interacting dark matter (SIDM) density spikes around supermassive black hole binaries can resolve the "final-parsec problem" by providing sufficient dynamical friction to drive mergers, producing a gravitational-wave background that is consistent with the NANOGrav 15-year data.