3256 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 derives closed-form expressions for the quasinormal mode frequencies of scalar perturbations in an effective de Sitter space within Generalized Proca theory, explicitly demonstrating how the theory's parameters govern the spectrum and the damping behavior of light versus heavy fields.
This paper introduces a novel frequency-domain spectral differentiation (FSD) method that overcomes the limitations of traditional stationary phase and post-Newtonian approximations by accurately modeling gravitational waveforms from accelerating sources across the entire inspiral-merger-ringdown phase, thereby enabling more precise parameter estimation and self-consistent treatment of astrophysical environmental effects.
This paper proves that in spacetime dimensions , FLRW solutions to the Einstein-scalar field equations with an ekpyrotic potential ( where and ) are nonlinearly stable towards the past, terminating in a quiescent, crushing AVTD big bang singularity while exhibiting isotropisation.
This paper proposes a mechanism where non-adiabatic thermodynamics during the photon freeze-out at recombination generates a small-scale, frozen non-equilibrium electromagnetic relic with a peak around 10–20 Mpc, though its amplitude is too weak to fully explain observed cosmic magnetic fields.
This paper proposes that quantum Oppenheimer-Snyder primordial black holes, which exhibit suppressed Hawking emission due to quantum gravity corrections, can account for all dark matter by relaxing gamma-ray constraints and expanding the viable asteroid-mass window compared to standard Schwarzschild models.
This paper investigates Lorentz-violating effects in a rotating bumblebee black hole, revealing that such violations suppress Lense-Thirring precession while enhancing geodetic and periastron precession, and significantly alter accretion disk images by shrinking the inner shadow, thereby offering complementary observational probes for strong-field gravity.
This paper investigates how Lorentz invariance violation in Einstein-Bumblebee black hole spacetime affects quantum steering and Bell nonlocality, revealing that steering is confined near the horizon and modulated by the violation parameter, while Bell nonlocality strengthens with distance from the black hole.
Using a holographic superfluid model with symmetry and higher-order nonlinear terms, this study reveals that topological defects (kinks) act as triggering sites for phase separation during quenches across a first-order critical point, uncovering a novel coupling mechanism between symmetry breaking and nonequilibrium structure formation in strongly coupled systems.
This paper investigates phase transitions in anti-de Sitter black holes coexisting with anisotropic matter fields, demonstrating their resemblance to Reissner-Nordström black holes and analyzing the correlation between these thermodynamic phases and the Lyapunov exponents derived from unstable null geodesics.
This paper investigates the thermodynamic properties, optical characteristics (including black hole shadows), particle trajectories, innermost stable circular orbits, and greybody factors of a charged black hole in bumblebee gravity with a global monopole, specifically analyzing how Lorentz symmetry violation and the monopole influence these physical phenomena.