3805 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 proposes that modeling the Riemann zeta function as a partition function for a "prime gas" leads to a quantum-corrected, non-singular black hole metric with a bounded Hawking temperature and an extremal remnant, while interpreting the Riemann hypothesis as the condition that arithmetic corrections to black hole thermodynamics are minimized.
This paper investigates whether static black holes in Massive Gravity can exhibit Aschenbach-like non-monotonic orbital velocity profiles driven by stable photon spheres rather than frame dragging, and explores the potential of this phenomenon as an observable signature distinguishing these theories from General Relativity.
This paper analyzes 142 gravitational-wave sources from the GWTC-4.0 catalog to jointly estimate the Hubble constant as km s Mpc and constrain deviations from general relativity in gravitational-wave propagation, finding results consistent with standard cosmology.
This paper extends a topological approach to higher-dimensional black holes, demonstrating that the topological charge of photon spheres is universally -1, thereby guaranteeing the existence of at least one unstable photon sphere regardless of spacetime dimension.
This paper demonstrates that the negative cosmological constant in Kerr-AdS spacetime significantly enhances energy extraction via magnetic reconnection by extending the viable radial range, enabling extraction from low-spin black holes, and increasing overall efficiency and power compared to asymptotically flat counterparts.
This paper conducts a robust comparative study of emergent dark energy models using diverse cosmological datasets, finding that while the Phenomenological Emergent Dark Energy (PEDE) model is statistically preferred by information criteria, the variable-curvature model uniquely exhibits a decelerated phase near consistent with DESI results.
This study demonstrates that the general relativistic trace source strength serves as a highly correlated diagnostic for topological scalar field responses in neutron stars, revealing that such topological configurations induce systematic radius reductions of approximately 1 km—comparable to current NICER uncertainties—while remaining dominated by matter contributions.
This paper investigates the relativistic dynamics of network nonlocality in -local quantum networks using the Unruh-DeWitt detector model, revealing that while chain topologies suffer irreversible degradation under acceleration, star topologies exhibit remarkable resilience and even reentrant nonlocality transitions, thereby highlighting the dual role of the Unruh effect in suppressing or protecting quantum correlations.
This paper demonstrates that in pure Lovelock gravity, the combined requirements of conformal flatness and pressure isotropy split isotropic solutions into a constant-density Schwarzschild interior and a unique higher-curvature isothermal attractor, proving that only the former can describe bounded stars while the latter universally governs the asymptotic behavior of the system.
This paper formulates a global optical-area method that determines static spherical black hole shadows by identifying the infimum of the ratio along the observer-to-horizon path, thereby unifying local photon-sphere results into a comprehensive selection rule applicable to various black hole metrics regardless of radial coordinate choice.