2546 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 investigates the thermodynamic and observational properties of charged torus-like black holes, finding that an exponential corrected entropy model uniquely predicts multiple phase transitions and stable Hawking radiation while yielding gravitational shift values consistent with observations of NGC 4258 and UGC 3789.
This paper establishes a controlled benchmark for extracting quasinormal modes from Kerr black hole ringdown waveforms by demonstrating how resonant excitation near exceptional points manifests in and alters overtone hierarchies, thereby clarifying both the capabilities and limitations of current extraction techniques for observational data analysis.
This paper establishes a new consistent truncation of four-derivative heterotic supergravity that preserves vector multiplets to reproduce the full heterotic bosonic action, utilizes this framework to derive four-derivative corrections to the Kerr-Sen solution, and demonstrates that the resulting distinct multipole structures differentiate these solutions from other black hole metrics.
This study employs open quantum system methods and Arnoldi iterations to analyze Krylov complexity and entropy in the early universe, revealing that while non-trivial sound speed yields similar complexity trends to the standard case, it induces distinct entropy evolution and maximally chaotic behavior characterized by specific Lanczos coefficients.
This paper resolves the ambiguity in defining angular momentum fluxes in general relativity by establishing Lorentz covariant supertranslation frames, deriving explicit frame-fixing conditions for point particle metrics, and proposing an elementary method for measuring the angular momentum aspect.
This paper demonstrates that in dark matter spike environments, the accretion of collisionless particles by secondary black holes in extreme/intermediate-mass-ratio inspirals is suppressed by higher spins but generates significant torques that drive spin-down and alignment, creating a universal mass-spin correlation that offers a novel observational constraint on dense dark matter distributions.
This paper presents the first construction of static non-extremal five-dimensional black hole solutions with four electric charges in supergravity with a specific pre-potential, demonstrating their consistency with thermodynamic laws and extending the results to include squashed horizons and a cosmological constant.
This paper simulates the optical appearance of reflection-asymmetric traversable thin-shell wormholes in Palatini gravity, revealing that light crossing the throat creates a distinct, luminous multi-photon ring structure and a significantly reduced central shadow compared to canonical black holes, offering a potential observational signature to distinguish these exotic objects.
This paper characterizes stable, off-equatorial circular orbits around magnetically charged black holes, demonstrating that such unique trajectories—impossible in electrically charged spacetimes—exhibit significant latitude deviations and stability under synchrotron radiation, offering potential observational signatures to constrain the magnetic charge of astrophysical black holes.
This paper investigates the quasinormal modes, greybody factors, and exceptional points of Schwarzschild-de Sitter black holes in semi-open systems with a partially reflective wall, utilizing Heun functions to reveal distinct mode behaviors, oscillatory greybody factors dependent on wall distance, and a second-order exceptional point characterized by mode exchange and square-root spectral deviations.