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 proposes a microscopic model of black holes as non-Abelian anyon condensates forming a topologically ordered timelike shell, which resolves the information paradox by encoding quantum information in fusion channels, reproduces black hole thermodynamics including entropy corrections, and ensures a nonsingular spacetime geometry.
This paper highlights the potential of discovering radio pulsars orbiting Sagittarius A* to test fundamental physics, while addressing the challenge of mass perturbations in the Galactic center by developing a numerical timing model to accurately probe spacetime and dark matter.
This paper demonstrates that primordial black holes retaining electric charges from the early universe, particularly near-extremal ones, can significantly alter Hawking radiation evaporation limits and thus reshape constraints on their viability as dark matter candidates.
This study demonstrates that thermal deformations caused by anisotropic heat conduction in super-Eddington magnetized neutron stars with column accretion can generate detectable continuous gravitational waves, potentially making these systems a new class of sources for upcoming observatories like the Einstein Telescope and Cosmic Explorer.
This paper presents a static, spherically symmetric black hole solution embedded in a Plummer dark matter halo and a Letelier cloud of strings, systematically analyzing its geometric properties, shadow, deflection angle, scalar perturbations, and thermodynamics to demonstrate that the string-cloud tension parameter drives leading-order modifications to all observables while the dark matter halo density provides only subdominant corrections.
This paper presents a framework for modeling galaxies within the geometry of the conservation group by dividing them into baryonic, dark matter, and outer regions to demonstrate how the theory naturally produces flat rotation curves and continuous models consistent with the radial acceleration relation.
This paper challenges the conventional view that gravity and inflation always ensure a classical universe by demonstrating that non-linear dynamics beyond slow roll can preserve non-classical features in cosmic structure, proposing Wigner function-based phase-space analysis as a method to detect these potential quantum signatures.
This paper presents a unified theoretical framework for high-frequency gravitational wave transients from ultralight boson clouds around primordial black holes, concluding that while binary-driven signals are theoretically possible, their extreme weakness and low event rates render them undetectable by current experiments, thereby highlighting the need for significantly improved future high-frequency gravitational-wave searches.
This paper extends a Weyl-coupled gravity model, previously validated with constant density assumptions, to realistic radially varying density profiles to explain the rotation curves of the Milky Way, M31, and seven local edge-on spiral galaxies without invoking non-baryonic dark matter.
This paper presents a comprehensive simulation of primordial black hole (PBH) cluster evolution using the Smoluchowski coagulation equation and Monte Carlo methods to model merger dynamics with and without mass segregation, thereby determining runaway timescales and mass population evolution to explain high-redshift supermassive black holes observed by JWST.