3256 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 a novel laboratory test of gravity that combines seismic-wave measurements with cosmic-ray muon detections to constrain quantum-gravity corrections to the Debye model while eliminating density-related uncertainties through muon tomography.
This paper demonstrates that the BEF symplectic form for non-local theories can be derived from an -Lagrangian via the covariant phase space approach, establishing its equivalence to the Barnich--Brandt form for second-order theories and providing a unified framework for understanding corner terms, boundary conditions, and Hamiltonians.
This paper derives a universal formula for the anomalous scaling of multipole moments in classical general relativity using effective field theory methods, demonstrating that this scaling is determined by gravitational wave phase shifts and proposing a novel resummation of universal short-distance logarithms to improve gravitational waveform modeling for compact binary systems.
This paper proposes a novel gravitational wave detection technique demonstrating that gravitational waves induce transitions in photon orbital angular momentum states, offering a method with broad frequency sensitivity, seismic noise immunity, and improved source distance determination capabilities.
This paper derives a closed formula for 5D Schwarzschild-Tangherlini black hole scalar wave scattering using the Nekrasov-Shatashvili function and computes non-vanishing, renormalization group running tidal Love numbers up to by matching effective field theory with ultraviolet solutions.
This paper demonstrates that incorporating loop corrections into Higgs and Peccei-Quinn pole inflation models can shift the spectral index to larger values consistent with recent ACT results while remaining compatible with tensor-to-scalar ratio bounds, with the specific requirements for one- and two-loop contributions depending on the sign of the inflaton's quartic coupling beta function.
The paper argues that existing matter-wave interferometer experiments, which verify the Schrödinger equation for a single delocalized system interacting gravitationally with an external mass, are sufficient to indirectly prove that gravity mediates entanglement between two systems under reasonable assumptions, thereby obviating the need for future, technologically unfeasible experiments.
Motivated by the GW230529 event, this study uses eleven general-relativistic simulations to demonstrate that increasing black hole spin in low-mass black hole-neutron star mergers significantly enhances ejecta mass and reveals a new spiral wave-driven mechanism, thereby expanding the potential for observable blue kilonova electromagnetic counterparts.
This paper demonstrates that Barriola–Vilenkin global monopoles cannot rotate within Einstein's general relativity, proving that the Newman-Janis algorithm fails to generate consistent solutions and that asymptotic analysis restricts regular axially symmetric spacetimes to the spherically symmetric case.
This paper establishes a connection between the Mano-Suzuki-Takasugi formalism and worldline effective field theory to analyze the dynamical tidal response of non-rotating black holes in general relativity, revealing that renormalized tidal response functions and resulting Love numbers are inherently scheme-dependent and sensitive to initial renormalization conditions.