2558 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 establishes a correspondence between corrected black hole entropy and the metric function to calculate resulting photon sphere and shadow characteristics, which are then constrained by Event Horizon Telescope observations of Sgr A* to test deviations from the Bekenstein-Hawking area law.
This paper applies exact WKB analysis and Borel–Padé resummation of quantum periods to derive high-precision quantization conditions that accurately reproduce the quasinormal mode frequencies of extremal Reissner–Nordström and Kerr black holes.
This study demonstrates through 23 long-term axisymmetric simulations that black hole supernovae are not limited to the most massive progenitors but occur systematically across a wide range of stellar masses and compactnesses, resulting in diverse explosion energies and black hole masses that cannot be fully predicted by carbon-oxygen core mass alone.
This paper reexamines cosmic inflation within extended General Relativity by employing a quantum-deformed, perturbatively and tensorially structured conformal metric to derive a consistent set of analytical formulas for inflationary observables, thereby offering a controlled phenomenological framework for understanding quantum-gravitational effects in the early Universe while preserving classical limits.
This paper investigates how the rotation and quadrupole deformation of compact objects influence the Shirokov and Shapiro effects within the Hartle-Thorne spacetime, utilizing both analytical geodesic deviation equations and full numerical analysis to reveal the coupling between radial and azimuthal oscillations and the mimicking nature of these relativistic observables.
This paper investigates the axial -mode oscillations of anisotropic neutron stars using realistic equations of state and two anisotropy prescriptions, revealing how pressure anisotropy systematically influences oscillation frequencies and damping times while providing empirical formulas to describe these dependencies on stellar compactness and anisotropy strength.
This paper analyzes the polarization structure of gravitational waves in Extended Relativity by deriving a unified deviation tensor formalism for compact binaries, which reveals that source geometry constrains the relative amplitudes of tensor, vector, and scalar modes, thereby defining specific observable signatures for both interferometric detectors and pulsar timing arrays.
This paper proposes a semiclassical framework for the final stages of gravitational collapse, demonstrating that a quantum potential arising after "Minkowski breaking" strongly opposes the formation of the central Schwarzschild singularity.
This paper investigates the pole structure of the Kerr Green's function in the frequency domain, demonstrating that while homogeneous solutions and connection coefficients exhibit Matsubara poles and zero-frequency singularities, these features cancel out in the total radial Green's function, thereby providing a frequency-domain foundation for understanding prompt response in Kerr spacetime ringdown waveforms.
This paper proposes that in quadratic gravity, the massive ghost responsible for unitarity violation is confined within zero-norm states via a BRST quartet mechanism involving a bound state with Faddeev-Popov ghosts, thereby restoring unitarity in a manner analogous to color confinement in QCD.