3841 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 unified semiclassical framework for an "emergent-gravity Hall effect" driven by effective gravitational fields arising from quantum geometry, identifying four distinct mechanisms involving Christoffel symbols in real, momentum, and time spaces that can induce a finite Hall response in quantum systems.
This paper constructs and analyzes unique large-scale foliations by Hawking surfaces in asymptotically Schwarzschild initial data sets, demonstrating that these surfaces provide a robust quasi-local energy tool with positivity, monotonicity under specific constraints, and convergence to the ADM energy, while also establishing their applicability in broader classes of dynamical spacetimes.
This paper presents a new Lorentzian Taub-NUT black hole solution in gravity that extends the Clifton-Barrow metric for , analyzes its physical properties including orbits and thermodynamics, and derives a related Euclidean Eguchi-Hanson type-II solution.
Using the latest DESI DR2, Planck, ACT, and SH0ES data, this study demonstrates that an interacting dark energy model derived from asymptotic-safety quantum gravitational field theory significantly improves the cosmological fit and alleviates the tension to a level by favoring a negative dynamical scale parameter for the cosmological constant.
This paper explores the dark bubble model in string theory, predicting that gravity weakens at micron scales and high energy densities to explain early inflation and the cosmological constant, while also proposing a quantum origin for the universe involving a 5D black hole.
This paper revisits an analytical scheme for computing nonlinearity ratios involving quadratic quasinormal modes, demonstrating excellent agreement with numerical simulations for the channel while identifying limitations in other cases and confirming the robustness of these ratios against source regularization choices at both the horizon and infinity.
This paper investigates periodic orbits and their associated gravitational wave emissions around black holes within an effective field theory extension of general relativity, revealing how higher-order curvature terms influence orbital dynamics and produce distinct waveform substructures linked to zoom-whirl behavior.
This paper analyzes the structure of one-parameter subgroups of SO(3,2), identifying two new types distinct from those in SO(2,2), providing explicit examples, and situating existing conformal gravity solutions within this classification.
This paper investigates gravitational lensing by a static spherically symmetric black hole within the revised Deser-Woodard nonlocal gravity framework, deriving distinct weak and strong field deflection corrections and identifying scale-invariant behaviors that offer a potential means to distinguish the model from other gravity theories through astronomical observations.
This paper develops a systematic formulation of statistical mechanics on Euclidean Snyder space to derive temperature-dependent thermodynamic corrections that suppress energy and entropy, which are then applied to early-Universe cosmology to establish stringent bounds on the Snyder deformation and Generalized Uncertainty Principle parameters using Big Bang Nucleosynthesis constraints.