2575 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 study reveals that in Schwarzschild spacetime, increasing the excitation number of multipartite states under the Hawking effect degrades quantum entanglement and mutual information while simultaneously enhancing quantum coherence, thereby offering a trade-off for optimizing different quantum information protocols in gravitational settings.
This paper presents a phenomenological Einstein-Cartan ekpyrotic model where a Weyssenhoff fluid's spin-torsion term, coupled to a scalar field with a steep exponential potential, dynamically damps shear and triggers a nonsingular bounce in a homogeneous universe, with numerical analysis confirming the stability of these trajectories against chaotic behavior.
This paper investigates a cosmological inflation model combining the Einstein-Hilbert action, Higgs potential, and a Gauss-Bonnet term with dilaton-like coupling, demonstrating through numerical analysis that the resulting inflationary observables align well with recent ACT DR6 data, whereas the model without the Gauss-Bonnet term reverts to chaotic inflation predictions.
This paper presents and investigates the properties of -boson stars, a generalization of standard boson stars parameterized by an angular momentum number , within spacetimes characterized by a negative cosmological constant that are asymptotically anti-de Sitter.
This paper investigates stellar dynamics within gravity, demonstrating that the theory yields second-order field equations free of ghosts and utilizing dynamical systems analysis to reveal that the autonomous isotropy equation possesses generally stable invariant submanifolds.
This paper presents a practical ringdown analysis pipeline for future space-borne gravitational wave detectors that integrates the FIREFLY acceleration algorithm with time-delay interferometry observables, achieving a ~200-fold speedup in analyzing multi-mode signals from massive black hole mergers to enable efficient and scalable tests of strong-field gravity.
This paper proposes that the concept of Quasilocal Probability in curved spacetime induces horizon-driven non-Hermitian dynamics in black hole ringdowns, producing a unique, correlated set of observational signatures that can be distinguished from generic modified gravity effects and tested with upcoming gravitational wave data to probe the fundamental nature of quantum mechanical Hermiticity.
This paper applies symbolic regression to the GWTC-4 binary black hole catalog to derive compact, interpretable analytic formulae for key population properties, such as merger-rate evolution and spin-mass correlations, thereby replacing opaque phenomenological models with transparent, differentiable laws that facilitate robust physical diagnostics and rapid downstream calculations.
This paper presents a covariant and gauge-invariant framework for analyzing radial adiabatic perturbations in self-gravitating imperfect fluids, comparing predictions from various thermodynamic theories and establishing an upper bound on the maximum compactness of dynamically stable stars with anisotropic pressures.
This paper demonstrates that chaotic migration driven by turbulent gas torques in accretion disks can induce detectable gravitational wave dephasing in LISA extreme mass ratio inspirals under specific conditions, highlighting the critical need for magnetohydrodynamic simulations to accurately model these effects beyond standard laminar disk assumptions.