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 binary black hole mergers with strong magnetic fields and high remnant spins can accelerate charged particles to ultra-high energies (-- eV) via the Bañados--Silk--West mechanism, identifying these events as promising sources of ultra-high-energy cosmic rays.
This paper develops a systematic analytic method based on temperature-graded Frobenius expansions to demonstrate that high-order pole-skipping in near-extremal holographic black holes is governed by near-horizon physics, where pole-skipping momenta become independent of the order and collapse onto a discrete set determined by IR conformal dimensions and thermodynamic quantities.
This paper proposes a universal bilinear model based on void asymmetry distributions derived from coherent galaxy rotation, which effectively constrains the matter density parameter () and initial density amplitude () while breaking their degeneracy independently of the dark energy equation of state ().
This paper argues that Tsallis entropy is the unique generalized entropy formulation capable of resolving galactic and cluster dynamics without dark matter within the entropic gravity framework, as it uniquely fits observational data across all scales and predicts the existence of dark matter-free galaxy clusters.
This paper investigates the repetitive Penrose process in Rastall rotating black holes surrounded by quintessence dark energy, demonstrating that the process is governed by the particle with the highest minimum spin threshold and that the Rastall structure parameter significantly enhances energy extraction efficiency at lower decay radii, while the coupling parameter has a comparatively minor influence.
This paper proposes a quantum simulation framework for one-dimensional systems using a finite grid spacing to derive a Generalised Uncertainty Principle that reveals distinct low- and high-energy behaviors, including single-point localisation and a minimum length scale, thereby offering a novel pathway to investigate quantum gravity phenomena.
This paper demonstrates that while traversable wormholes in Unimodular Gravity and General Relativity share identical geometric and geodesic structures, they are dynamically distinguished by their source sectors, where Unimodular Gravity requires either restricted equations of state or an effective inhomogeneous vacuum contribution to sustain the same geometry.
This paper analytically demonstrates that regular black holes in non-minimally coupled scalar-tensor theories become unstable at specific critical coupling constants, where the effective potential develops an extremum at the event horizon and quasi-normal frequencies become purely imaginary, leading to a model-independent general area quantization.
This paper demonstrates that negative energy flux emitted by a moving mirror with non-monotonic acceleration serves as a channel for information recovery, thereby enhancing the bipartite entanglement accessible to detector modes in analog Hawking radiation.
This paper demonstrates that the evolving power spectrum (ePS) is an optimal summary statistic for inferring reionization parameters from future SKA-Low 21-cm data, as it effectively accounts for light-cone evolution and yields significantly tighter constraints than traditional cylindrical or slice-wise power spectra.