3826 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 eight-dimensional Holographic Renormalisation is encoded in a unique conformal gravity theory that combines the Einstein-Hilbert action with a specific Euler term, effectively reproducing the regularised polynomial density and cancelling divergences through boundary terms, leading to a conjecture that this equivalence holds for all even dimensions.
This paper investigates the interplay between non-linear electrodynamics and perfect fluid dark matter in Bardeen black holes by analyzing equatorial periodic orbits and their associated gravitational waveforms, revealing distinct signatures of these parameters on orbital dynamics and emission patterns.
This paper introduces a physics-informed posterior learning method that leverages geometric-optics consistency to distinguish lensed gravitational wave signals from unrelated multiple mergers, significantly improving detection efficiency and lowering the required signal-to-noise ratio for identifying lensed events in dense catalogs.
This paper introduces a novel framework combining physics-informed Transformers with simulation-based inference to efficiently and accurately detect eccentric binary black holes in Pulsar Timing Array data, offering a scalable alternative to traditional Bayesian methods by embedding analytical gravitational wave physics directly into the model's architecture.
This paper demonstrates that while inner horizons in eternal black holes are generically unstable, the dynamical formation and evaporation of a compact trapped region ensures a finite renormalized stress-energy tensor, with inner-extremal geometries offering a particularly stable configuration characterized by mild power-law growth rather than exponential divergence.
This paper proposes a singularity-free model of the black hole interior within General Relativity, describing it as a three-layered structure of scalar quasi-particles featuring a negative-energy AdS core and a positive-energy crust joined by a transition layer, which collectively function as a quasi-static thermodynamic engine to explain black hole formation and evaporation.
This paper presents exact solutions for transient, time-dependent traversable wormholes in general relativity where a decaying radial energy flux drives the geometry toward a static configuration, satisfying traversability conditions while exhibiting diminishing violations of the null energy condition and stability against perturbations.
This paper investigates a confining nonlinear electrodynamics black hole with Barrow entropy, revealing a unique quadruple coincidence where the peak Hawking temperature, heat capacity divergence, Joule-Thomson inversion, and zero radial tidal force all occur at a single geometric radius, while observational constraints from Sgr A* limit the confinement parameter to .
This paper extends the analysis of the electromagnetic scoot effect to scattering processes involving dyons (particles with both electric and magnetic charges), demonstrating how the first-order post-Minkowskian boost-like angular momentum shift depends on the choice of spacetime slicing and comparing these results to the purely electric case within multiparticle state representations.
This paper presents the first complete computation of the renormalized stress-energy tensor for a massless scalar field inside a four-dimensional Schwarzschild black hole, revealing that near the spacelike singularity, the dominant quantum effect is a divergent vacuum-polarization stress that acts as a focusing source rather than a defocusing one, thereby failing to smooth the singularity within the fixed-background approximation.