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 paper introduces three-dimensional asymptotically-FLRW spacetimes as a simplified framework for studying cosmological asymptotic symmetries, characterizing their deformed symmetry group, defining covariant boundary charges and news, and demonstrating the existence of exactly conserved non-linear Newman-Penrose charges.
This paper demonstrates that in a thermal bath of gravitons, metric fluctuations induce a probabilistic uncertainty in the causal structure of a massless scalar field, causing the lightcone to spread with a variance that grows cubically in time and linearly with temperature.
This paper introduces SeismoGPT, a transformer-based autoregressive model that successfully forecasts three-component seismic waveforms in the time domain by learning physically constrained dynamical continuation, achieving high phase coherence and spectral accuracy across diverse synthetic scenarios.
This paper analyzes black-hole echo resonance spectra within a controlled transfer-function model featuring a compactly supported barrier and a Robin wall, aiming to rigorously prove localization estimates and clarify the standard cavity denominator's behavior rather than proposing new echo mechanisms or observational claims.
This paper establishes a novel "shadow thermodynamics" framework for four-dimensional charged AdS black holes surrounded by string clouds and quintessence, demonstrating that the black hole's shadow radius serves as a valid proxy for the event horizon in reproducing van der Waals-like phase transitions and analyzing particle emission rates.
This paper introduces a designer method within Horndeski's scalar-tensor theory to construct specific subclasses that support ghost-free and Laplace-stable cosmological solutions for both exponential and power-law acceleration of the Universe.
This paper proposes a five-dimensional braneworld model where hidden-sector matter accretion onto a common black-string horizon drives the growth of supermassive black hole seeds on our brane, offering a solution to the high-redshift black hole problem without requiring primordial fossils or super-Eddington accretion.
This paper systematically analyzes how ultralight dark matter induces distinctive signals in space-based laser interferometers like LISA and Taiji, demonstrating that while laser-frequency variations are suppressed by standard data processing, test-mass oscillations remain detectable and offer significantly improved sensitivity to electron couplings compared to traditional Michelson channels.
This paper demonstrates that an observer falling along the polar axis of a Kerr black hole can survive tidal forces without disruption if the black hole's mass exceeds a spin-dependent critical value, a condition met by supermassive black holes but not by stellar-mass rotating ones.
This essay reframes proposed tabletop tests of gravity's quantum nature as "quantum-gravitational imitation games," demonstrating how gravitational interactions between mechanical oscillators can facilitate quantum state teleportation to enable fundamental empirical probes of gravity.