3949 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 employs the McVittie metric to analytically derive the effective mass evolution and horizon dynamics of cosmologically coupled black holes accreting Generalized Chaplygin Gas, revealing that in a matter-dominated era, a larger available matter supply delays the onset of accretion.
This paper presents a novel framework for estimating the Hubble parameter using unedited compact object merger catalogues and detection-level information, enabling cosmological inference from marginal candidates without relying on per-candidate parameter estimation or additional selection cuts.
This paper presents experimental predictions of a local scale-invariant, non-Hermitian pilot-wave formulation of quantum theory, demonstrating that while minute scale effects are typically hidden, they could be detected in specific Aharonov-Bohm and spectral experiments, while simultaneously resolving Einstein's historical objections regarding the second-clock effect and distinguishing the theory from other quantum formulations through trajectory-dependent probabilities.
This paper computes the first-order self-force radiated energy for radially infalling scalar and massive particles released from rest in Schwarzschild spacetime, validates the results with Post-Newtonian checks, and outlines a framework for future higher-order calculations and extensions to other scenarios.
This paper proposes an extension of standard quantum mechanics where Newtonian time is replaced by a stochastic "quantum clock," demonstrating that this substitution leads to a generalized evolution equation for the density matrix that recovers the von Neumann equation at the leading order while introducing higher-order corrections, including Lindblad-type terms, which are constrained by atomic clock precision limits.
This paper investigates a modified gravity theory with a non-minimal coupling within an effective field theory framework, deriving a black brane solution and demonstrating that this interaction modifies holographic transport coefficients—specifically violating the color DC conductivity bound for positive coupling and the KSS shear viscosity bound for negative coupling—while remaining consistent with standard Einstein-Yang-Mills results in the vanishing coupling limit.
This paper introduces DeepRed, a deep learning pipeline that leverages diverse modern computer vision architectures to achieve state-of-the-art redshift estimation across galaxies, gravitational lenses, and supernovae, significantly outperforming existing methods on both simulated and real astronomical datasets while demonstrating robust generalization and interpretability.
This paper demonstrates that the distinct behavior of inertial frame dragging and spin-precession frequencies—specifically their divergence near the horizon for black holes versus their finiteness throughout the spacetime for naked singularities—provides a robust operational method to distinguish between Kerr-Newman black holes and naked singularities, offering a potential test for cosmic censorship through future high-precision observations.
This paper presents strong numerical evidence for the existence of periodic, stationary, axisymmetric solutions containing multiple counter-rotating black hole horizons without conical singularities (struts), demonstrating that such configurations can be constructed for any inter-horizon distance, unlike their static counterparts which face rotational constraints.
This paper extends the analogy between freezing lakes and cosmology by incorporating buoyancy-driven convection into the Stefan problem, demonstrating that the resulting ice growth dynamics structurally reproduce the Friedmann equations with effective terms corresponding to radiation, matter, curvature, a cosmological constant, and a novel contribution analogous to domain walls or energy exchange.