3299 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 constructive framework that elevates gauge-invariant scattering amplitudes to define quantum field theory actions by promoting color-dual numerators to operators, thereby systematically deriving gravitational effective actions from gauge-theory components and extending color-kinematics duality from amplitudes to the operator level.
This paper demonstrates that the third law of black hole dynamics holds in Lovelock gravity for static, spherically symmetric charged black holes, as the range of admissible perturbations vanishes when surface gravity approaches zero, thereby preventing the attainment of extremality through any finite classical process.
This paper proposes a novel Herglotz-type formulation of gravity that incorporates dissipation through an action-dependent Lagrangian, successfully reconciling previously ruled-out linear models with observational data from solar system tests and offering a new mechanism for cosmic acceleration.
This paper proposes a four-dimensional gauge-gravity unification based on $SL(2N,C)$ Yang-Mills theory where spontaneous symmetry breaking and tetrad condensation induce Einstein-Cartan gravity and generate three composite fermion families, with anomaly matching uniquely selecting to yield the chain.
This paper introduces "noble gravitational atoms," a new class of spherically symmetric, self-gravitating scalar field solutions around black holes with angular momentum number , which exhibit unique density profiles near the event horizon and can possess galactic-scale sizes and lifetimes comparable to the Universe.
This paper presents two dynamical system formulations for generic gravity, demonstrating that while the first approach struggles with non-hyperbolic fixed points in a Non-Minimal Derivative Coupling toy model, the second formulation successfully analyzes the complex phase space of mixed -Higgs inflation by correctly recovering known limits and providing illustrative phase portraits.
This paper establishes that real observers can only resolve the imaginary phase obstructing de Sitter entropy counting if they are "gravitational observers" whose fluctuations share the negative modes of the conformal factor, as mere information-bearing capabilities are insufficient to factorize the topological sector responsible for the phase.
This paper revises the covariant phase-space method for gravitational theories with up to quartic Riemann tensor terms and applies these results to derive near-horizon charges and verify the first law of thermodynamics for rotating BTZ and hairy black holes in three-dimensional higher-curvature gravity.
This paper derives orbit-averaged evolution equations and constructs waveforms for extreme-mass-ratio inspirals with a spinning secondary in a Kerr background under the linear-spin approximation, providing a framework to incorporate secondary spin effects into gravitational-wave models for future space-based observatories.
This paper refutes Spavieri et al.'s claim that Wang et al.'s interferometric experiment disproves special relativity by demonstrating that their argument relies on circular reasoning and constitutes a logical fallacy.