2615 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 presents a new family of exact five-dimensional vacuum black brane solutions with Bianchi VI symmetry that generalize the Solv geometry, deriving their metrics analytically and analyzing their thermodynamics and hyperscaling-violating properties despite their non-AdS asymptotics.
This study numerically investigates the interior of asymptotically flat hairy black holes with inverted Higgs potentials, revealing that they possess a central curvature singularity without an inner Cauchy horizon and exhibit a violation of the weak energy condition that intensifies with the scalar field strength.
This paper investigates the Einstein-Maxwell-Power-Yang-Mills black hole models by analyzing how the nonlinear Yang-Mills parameter modifies the spacetime geometry, particle dynamics (including geodesics, shadows, and ISCOs), and thermodynamic stability, ultimately demonstrating its significant influence on phase transition structures and critical points.
This paper investigates the semi-infinite square potential well by deriving rules for the number of bound states, correcting a flawed graphical simplification found in standard textbooks, and providing accurate approximations and exact solutions for the energy eigenvalues and eigenfunctions.
This paper extends Horndeski's gravity to the Palatini formalism by introducing a disformal transformation for the connection, demonstrating that the resulting theory reduces on-shell to kinetic gravity braiding and admits cosmological models capable of reproducing late-time cosmic acceleration.
This paper investigates a specific gravity model coupled to a scalar field, demonstrating that it admits classical degenerate metric solutions that facilitate a smooth, dynamical transition from a Euclidean to a Lorentzian spacetime signature.
This paper investigates black hole shadows in nonminimally coupled Weyl connection gravity, deriving modified Schwarzschild- and Reissner-Nordström-like solutions and using Event Horizon Telescope observations of Sgr A* to place meaningful observational bounds on the theory's Weyl parameter, thereby demonstrating the potential of horizon-scale imaging to constrain spacetime non-metricity.
This paper presents a dynamical derivation of General Relativity by interpreting the invariant interval as proper time and applying the principle of extremal aging to free-falling bodies, demonstrating that the resulting linearized theory naturally necessitates the non-linear Einstein field equations to ensure energy-momentum conservation and self-consistency.
This paper demonstrates that in quantum group-deformed spin systems, conventional local measurements on a Bell singlet state introduce deformation-dependent biases, which can only be resolved by adopting a symmetry-covariant, braided notion of locality that restores unbiased statistics while preserving perfect anticorrelation.
This paper introduces a deep learning framework utilizing a convolutional encoder-decoder architecture and transfer learning to rapidly and accurately generate Teukolsky amplitudes for generic Extreme Mass Ratio Inspirals (EMRIs), overcoming the computational limitations of traditional methods for space-borne gravitational wave detection.