3841 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 Stueckelberg gauge-invariant formulation of Modified Gravity (MOG) that generates a massive vector field without spontaneous symmetry breaking, thereby decoupling the vector mass from the cosmological evolution of the gravitational coupling to facilitate independent cosmological tests.
This paper investigates the accretion of various barotropic fluids onto Ellis-Bronnikov wormholes, revealing that while Schwarzschild black holes consistently gain mass from such accretion, the wormhole's mass decreases, a phenomenon attributed to their distinct topologies and observable even in massless wormholes possessing non-zero Wheelerian mass.
This paper proposes a dark matter detection scheme using an array of unentangled qubits in a Ramsey-type interferometer to achieve a sensitivity scaling of , demonstrating that trapped-ion systems with can match or surpass existing experimental and astrophysical bounds for wave-like dark matter and high-frequency gravitational waves.
This paper presents a comprehensive Hamiltonian analysis of the most general Carroll-invariant Lagrangian derived from the Holst action, utilizing Cartan geometry to identify the theory's constraint structure, gauge symmetries, and Hamiltonian vector fields while introducing Ashtekar-like variables for the magnetic Carrollian regime.
This paper proposes a geometric multimessenger consistency test using LISA and SKA observations of compact binary pulsars to compare orbital inclination measurements from radio timing and gravitational waves, demonstrating that a four-year observation could achieve a precision of approximately to to detect potential mismatches between near-zone and radiative gravity descriptions.
This paper demonstrates that the dimensionless parameter in Scalar-Tensor-Vector-Gravity (STVG) can be tightly constrained to the range by requiring that the theory's corrections to the terrestrial Sagnac delay remain consistent with observed GPS fluctuations.
This paper introduces a shell-based shortest-path anisotropy statistic for graph discretizations of black-hole geometries, demonstrating that this measure exhibits a stable radial organization strongly correlated with the logarithmic Kretschmann profile across various black-hole families, thereby serving as a curvature-sensitive diagnostic distinct from universal pointwise curvature scalars.
This paper demonstrates that the universal logarithmic temperature dependence in the quantum thermodynamics of near-extremal black holes arises from the Lichnerowicz lifting of near-horizon tensor zero modes, where detailed parent-geometry data cancel out to reveal an infrared bulk-boundary matching with the Schwarzian soft sector.
This paper introduces a Laplace transform method that decomposes curved-space cosmological modes into superpositions of flat-space plane waves, thereby simplifying the calculation of cosmological correlators into closed-form series with manifest energy singularities and unified diagrammatic rules applicable across the entire kinematic domain.
This paper introduces a Laplace-space approach that decomposes curved-space cosmological correlators into superpositions of flat-space plane waves, thereby simplifying calculations to elementary flat-space integrals and yielding transparent, closed-form series solutions for massive field interactions in de Sitter space.