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 lattice simulation study reveals that weak acceleration in gluodynamics transforms the finite-temperature confinement-deconfinement phase transition into a spatial crossover where coexisting phases are separated by a boundary accurately described by the Tolman-Ehrenfest law, suggesting such spatial transitions may occur near Schwarzschild black hole horizons.
This paper investigates the equilibrium Gibbs bifurcations of four-dimensional Bardeen-AdS black holes at fixed pressure, revealing that increasing the regularization scale induces a transition from Reissner-Nordstrom-AdS-like swallow-tail behavior to a single-branch regime through distinct topological boundaries governed by the dimensionless combination .
This paper establishes the future global-in-time existence and uniqueness of small perturbations for both Maxwell-Jüttner equilibria and vacuum solutions of the massless Boltzmann equation on decelerating FLRW spacetimes with topology, covering hard ball interactions for all expansion rates and vacuum stability for .
This paper introduces a novel eigenvalue technique to solve the adjoint Fokker-Planck equation for the probability distribution of inflationary e-folds, revealing a previously overlooked power-law intermediate regime in quantum diffusion and characterizing how constant drift potentials qualitatively alter the distribution's peak and tail behavior in narrow- versus broad-well limits.
This paper investigates the viability of using entropy-induced density profiles from various modified gravity frameworks (Barrow, Tsallis, Kaniadakis, logarithmic, and exponential) as effective sources for traversable wormholes in the Morris-Thorne spacetime, demonstrating that these entropy-inspired sectors can support such geometries by redistributing exoticity through anisotropic stresses while satisfying necessary equilibrium and energy-condition constraints.
This paper proposes a novel analytical method for calculating observational parameters in tachyon inflation by introducing a functional dependence of slow-roll Hubble flow parameters, leading to new test Hubble rate functions that achieve improved agreement with recent Planck, ACT DR6, and DESI observational data.
The paper introduces the BBH-Genesis inference pipeline to analyze GWTC-4 data, finding strong evidence that the observed binary black hole population is best explained by a two-channel formation scenario with a potential third channel linked to AGN environments.
This paper resolves the long-standing controversy over relativistic temperature transformations by demonstrating that effective temperature increases with velocity in a manner dependent on the system's equation of state, thereby supporting the Ott-Eddington interpretation and establishing temperature as an observer-dependent quantity linked to the inverse-temperature four-vector.
This paper presents a purely kinematic derivation showing that the quadrupole radiation from nonrelativistically separating point masses, when modeled with imaginary-time periodicity, yields an exact Planckian graviton spectrum without requiring thermal equilibrium, horizons, or stochastic sources.
This paper establishes a group-theoretic interpretation of the Unruh effect by demonstrating that the affine symmetry on a light ray, which relates inertial translations to accelerated dilations via the Mellin transform, provides the minimal structural foundation for the thermality observed on the Rindler horizon through modular theory.