2594 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 novel method for measuring the Hubble constant by combining strong lensing of gravitational-wave dark sirens with galaxy lensing data, demonstrating that just eight such lensed events can improve measurement precision by approximately 50% compared to 250 unlensed events.
This paper evaluates the detection prospects and parameter estimation capabilities of space-based gravitational-wave detectors and their networks for 73 verification binaries, demonstrating that while individual detectors like DECIGO show high sensitivity, a combined network significantly enhances source detection and measurement precision to advance multi-messenger astronomy.
This paper proposes an algebraic generator-history framework for Lorentzian topology change that identifies parity-odd conformal curvature as a unique, pre-quantum geometric diagnostic capable of tracking chiral generator dynamics without relying on new gravitational laws or endpoint-only invariants.
This paper demonstrates that anisotropic matter black holes characterized by parameters and can be identified as nonlinear electrodynamics black holes with power-index and charge term , enabling the derivation of rotating and extremal solutions that encompass specific cases like constant scalar hair, charged quantum Oppenheimer-Snyder, and Einstein-Euler-Heisenberg black holes.
This paper introduces new mass-type invariants for time-symmetric initial data under the Dominant Energy Condition that, unlike the total Hawking mass, effectively characterize de Sitter solutions in the presence of a positive cosmological constant, offering a refined perspective on Min-Oo's conjecture.
This paper demonstrates that polariton condensates provide a unique platform for simulating analogue black hole mergers, showing that while pairs of vortices cannot form a common horizon, systems of four or more vortices can undergo a complete merger governed by a simple geometrical law.
This paper proposes a new super-renormalizable or finite non-local ultraviolet completion of general inflationary theories that preserves their classical background solutions and perturbation dynamics, thereby resolving previous conflicts between renormalizability and stability while demonstrating the consistency of the inflationary paradigm with a well-defined quantum theory of gravity.
Using first-principles lattice simulations of SU(3) Yang-Mills theory in Rindler spacetime, this study demonstrates that weak acceleration induces a spatially inhomogeneous confinement-deconfinement phase transition where distinct phases coexist, with a phase boundary consistent with theoretical predictions and a critical temperature matching that of non-accelerated gluodynamics.
This paper investigates the evolution of cosmic structure within three competing teleparallel Gauss-Bonnet cosmological models, demonstrating that they can match the growth predictions of the standard CDM model for specific parameter ranges while potentially exhibiting distinct deviations at intermediate scales.
This paper establishes that in asymptotically flat, spherically symmetric spacetimes satisfying the weak energy condition, the Schwarzschild solution sets the absolute upper bound for event horizon, photon sphere, and shadow radii, while also deriving specific bounds for extremal black holes and proving that the strong energy condition cannot be violated outside the event horizon.