4428 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.
By linearizing hydrodynamic equations within Bohmian mechanics, this paper derives a generalized effective metric for phase perturbations that incorporates the complete functional variation of the quantum potential and external fields, revealing dispersive corrections and identifying the specific conditions under which the system recovers the effective geometry of a free Gaussian wave packet.
This paper demonstrates that a localized environmental energy distribution can induce "topological reconstruction" in black-hole thermodynamics, causing the creation, annihilation, and migration of equilibrium defects and altering their stability while preserving the total topological number across various black-hole models.
This paper establishes a unified relativistic framework based on the modified Teukolsky formalism to model extreme mass-ratio inspirals in perturbative environments, demonstrating that ultralight scalar clouds induce significant orbital dephasing where gravitational-wave flux and background-induced shifts partially cancel, thereby providing essential tools for future space-based gravitational-wave observations to probe black-hole environments.
This paper establishes a general axiomatic framework for multi-time states within operational probabilistic theories that accommodates both Markovian and non-Markovian dynamics, enabling the characterization of temporal memory, causal inference, and Bayesian retrodiction across quantum mechanics and generalized theories like boxworld.
This paper numerically investigates five-dimensional vacuum gravitational collapse with angular momentum, revealing that while mass scaling near the threshold of black-hole formation follows a universal critical exponent, the angular-momentum scaling exhibits non-universal critical exponents that depend on the initial data family.
This paper reports the successful nanofabrication, high-efficiency loading, and optical trapping of customized high-aspect-ratio silicon dioxide discs in a vacuum, demonstrating a scalable method for creating particles suitable for high-frequency gravitational wave detection and sensitive accelerometry.
This paper presents a novel formulation of complex general relativity where the spacetime metric is reconstructed from three affine lines per point, leading to a canonical theory with a weighted triple of lines as the sole dynamical variable that remains regular even when the evolution direction becomes null.
This paper determines the leading finite-radius corrections to the two-boundary response of a charged axion wormhole near its BPS endpoint by deriving specific scaling behaviors for boundary eigenvalues and Hessians, identifying the first angular resonance, and averaging the inverse response over a chiral Gaussian ensemble to obtain the leading finite-radius two-source coefficient.
This paper investigates the dynamical entropy of causal diamonds using Wald-Zoupas charges, establishing an exact balance law for entropy change, deriving a linearized physical process first law without requiring background Killing symmetry, and extending these results to semiclassical gravity and various spacetime models.
This paper investigates how a neutral vector field non-minimally coupled to the Einstein tensor on a Reissner-Nordström black hole exhibits charge-activated propagation effects, where weak coupling primarily shifts the photon sphere and shadow radius rather than causing birefringence, while stronger coupling reveals polarization-dependent instabilities and non-unique continuations at critical coupling thresholds.