3207 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 investigates quantum corrections to the Randall-Sundrum model in a near-extremal black brane background by incorporating Jackiw-Teitelboim gravity and Schwarzian modes, deriving the corrected Kaluza-Klein mass spectrum, and analyzing the impact on the Goldberger-Wise mechanism to provide new insights into cosmology and phase transitions.
This paper develops a quantum-optical framework for acceleration radiation from atoms falling into a Schwarzschild black hole interacting with a massive Proca field, demonstrating that while the thermal excitation balance remains universal, the absolute spectra and entropy flux are uniquely shaped by mass thresholds, polarization-dependent graybody transmissions, and vector-field-specific radiative area changes.
This paper presents the first comprehensive search for gravitational wave memory from supermassive black hole binary mergers and generic bursts using PPTA and EPTA data, employing full numerical relativity waveforms and advanced posterior approximation techniques to establish stringent upper limits on merger rates and burst strain amplitudes.
This paper presents exact solutions for bumpy black holes and black branes in the Einstein $SU(2)$ non-linear sigma model, where superfluid pion multi-vortices induce horizon deformations governed by a Liouville equation and characterized by a topological vorticity invariant that dictates the geometry and thermodynamics.
This paper presents a gravitationally decoupled anisotropic strange star model using the minimal geometric deformation approach with a MIT bag equation of state, demonstrating that the deformation parameters and enable the construction of stable, ultra-compact configurations capable of supporting observed high-mass millisecond pulsars up to while satisfying all physical and observational constraints.
This paper utilizes high-performance CUDA simulations combined with the Hamilton–Jacobi formalism to investigate the shadows and energy emission rates of rotating charged Euler–Heisenberg black holes with global monopoles, revealing that while the global monopole, electric charge, and rotation parameters significantly influence these properties, the Euler–Heisenberg nonlinear parameter has a negligible effect, thereby enabling the establishment of strict bounds on the former parameters to reconcile with Event Horizon Telescope observations.
This study presents numerical-relativity simulations of binary neutron star mergers incorporating muons and muonic reactions, revealing that their inclusion has a relatively minor impact on remnant evolution and ejecta properties compared to previous literature, suggesting less severe consequences for nucleosynthetic yields and electromagnetic counterparts.
This paper demonstrates a universal constraint-wave asymmetry in static, spherically symmetric throat spacetimes, where propagating electromagnetic and gravitational waves () experience strong sub-barrier suppression due to effective potential barriers, whereas static gravitational monopole perturbations () undergo only polynomial attenuation without such barriers.
This paper provides a concise review of a cosmological model based on transactional entropic gravity, originally presented at the 2025 Lake Como School and detailed in a 2023 publication by Schlatter and Kastner, which addresses dark matter, dark energy, and cosmological tensions.
This paper demonstrates that gravitational lensing cannot explain the high-mass black holes observed by LIGO and Virgo, as the proposed lensing model fails to simultaneously satisfy constraints from merger counts, mass and distance distributions, the absence of strongly lensed events, and the stochastic gravitational-wave background.