3919 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 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.
This paper proposes a -inflation framework with a field-dependent kinetic term that resolves tensions between -attractor T-models and natural inflation with recent ACT data by shifting them into favored observational regions, while simultaneously satisfying Swampland conjectures and predicting distinct gravitational-wave signatures for future detection.
This paper demonstrates that scalar-nonmetricity gravity, through specific nonminimal couplings between a scalar field and the nonmetricity scalar, provides a viable and robust framework for successfully reproducing the observed baryon asymmetry of the Universe without requiring fine-tuning of parameters.
This paper investigates the dynamics of spinning charged test particles around a Schwarzschild black hole in a uniform magnetic field, deriving analytical solutions for integrable equatorial motion while revealing chaotic behavior in non-integrable off-equatorial regimes through numerical phase space analysis.
This paper demonstrates that the gravitational spin Hall effect induces helicity-dependent corrections to black-hole shadows, causing polarized light of opposite spins to trace slightly different boundaries even in static spacetimes, thereby revealing that these shadows are not purely geometric observables.