4428 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 formulates compact star-like systems harboring traversable wormholes with chaotic magnetic fields and anisotropic matter, demonstrating that magnetization enables extreme masses and stability while significantly influencing gravitational-wave echo times.
This paper investigates how finite wave-packet widths, spatially correlated dephasing, and residual electrostatic interactions limit the operational utility of gravity-mediated entanglement, identifying specific parameter windows where the generated state remains useful for tasks like Bell violation and teleportation while highlighting the critical tolerance boundaries for future experimental tests.
This paper demonstrates that self-interacting secluded dark matter produced from inflaton decay can achieve internal thermalization with a nonzero chemical potential, allowing for significantly lower dark matter mass limits compared to non-thermal scenarios by suppressing free-streaming lengths while remaining consistent with cosmological constraints.
This paper introduces and analyzes families of nonrelativistic MOND theories that simultaneously modify both gravity and inertia, demonstrating how their combined effects reproduce primary MOND predictions while exhibiting unique structural features, such as distinct interpolating functions and the necessity of both modifications to achieve MOND phenomenology.
This paper demonstrates that while Lagrange multiplier field renormalization in Einstein gravity coupled to a scalar field successfully absorbs five of the six one-loop divergent structures off-shell, it leaves one irreducible on-shell counterterm unabsorbed, thereby providing a sharp distinction between equation-of-motion divergences and genuine physical divergences that are absent in pure gravity.
This paper presents an explicit, smooth, and invertible algebraic separation of the coupled gravitational and electromagnetic perturbation equations for nonextremal Kerr-Newman-(anti-)de Sitter black holes, providing a unified framework for analyzing quasinormal modes, stability, and holographic applications across arbitrary complex frequencies.
This paper investigates the Krylov complexity of primordial perturbations in two-field inflation, revealing that coupled curvature and entropy modes exhibit distinct, oscillatory dynamics and squeezing histories after horizon exit, driven by relative phases and nonlinear channel interactions.
This paper demonstrates that hydrodynamic universality breaks down in causal first-order viscous neutron star oscillations across a broad range of BDNK frames at high bulk viscosities, leading to significant alterations in oscillation mode structures and suggesting that such first-order theories are insufficient for modeling sufficiently viscous neutron stars.
This paper demonstrates that the swirling universe geometry can be derived from the Kerr C-metric by applying a coordinated horizon-degeneration and scaling procedure that sends a pair of accelerating, rotating black holes to infinite distance while preserving a finite gravitomagnetic twist.
By applying an intrinsic stellar-structure scaling analysis (IPAD-TOV) to a diverse set of nuclear equations of state, this study derives an equation-of-state-independent estimator that constrains the central squared sound speed of canonical neutron stars to approximately 0.52, demonstrating that common structural relations can effectively reduce model dependence in inferring core properties.