2489 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 applying a "kinetic driving" Floquet engineering technique to the Hubbard model, specifically the Bose-Hubbard model, effectively suppresses single-particle processes to generate quasi-random all-to-all interactions, thereby enabling a practical cold-atom quantum simulation of Sachdev-Ye-Kitaev (SYK) physics.
This paper introduces a novel shell-based effective field theory that leverages known black hole perturbation solutions to bypass higher-order calculation hurdles, enabling the derivation of scalar Love numbers up to and revealing a conjectured all-order structure involving the Riemann zeta function.
This paper investigates the thermodynamic phase transitions and quantum entropy corrections of the Simpson-Visser regular black hole, demonstrating that singularity resolution induces critical instabilities and alters the evaporation end-state through a discontinuous heat capacity and leading-order quantum effects.
By applying Wilson's naturalness criterion to address the limitations of standard fine-tuning definitions, this paper demonstrates that single-field inflationary models generating primordial black holes are not technically unnatural, contrary to common criticism.
This paper demonstrates that by employing a collision kernel conserving energy-momentum and particle current, the poles of the relativistic kinetic equation yield a dispersion relation with a systematic gradient structure where spatial and temporal gradients appear in unison, thereby ensuring causality in truncated hydrodynamic theories.
This paper investigates the Chern-Simons-like formulation of third-way consistent 3D MMG-like massive gravity models, solving their field equations and analyzing their AdS backgrounds and dual CFT central charges to reveal that specific chiral and degenerate points exhibit rank-2 and rank-3 Jordan block structures, respectively, which signal logarithmic and ultra-logarithmic behaviors in the boundary theory.
This paper proposes that the arrow of time arises from the monotonic growth of a multidimensional manifold's volume, where the Bekenstein-Hawking-Wald entropy of the geometric background, rather than matter entropy, drives a robust and persistent temporal directionality even in vacuum conditions.
This paper proposes a minimal generalized Proca model that successfully realizes a phantom-divide crossing at low redshifts while maintaining stability across all dynamical sectors and producing cosmological perturbation signatures consistent with current observational data.
This paper presents accurate spectral methods to construct the spacetime of rotating black holes surrounded by massive scalar fields with nonminimal couplings, enabling the calculation of horizon properties and paving the way for testing fundamental scalar degrees of freedom through electromagnetic and gravitational-wave observations.
This paper utilizes Newman-Penrose and Geroch-Held-Penrose formalisms to reformulate the horizon condition of stationary black holes as the Penrose-Rindler equation, thereby deriving a geometric, quasilocal Smarr-like formula that unifies horizon dynamics with thermodynamics through a pressure-volume interpretation.