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 investigates gravitational wave propagation and lensing in the weak-field limit by applying the Raychaudhuri equation and its Newtonian analogue to demonstrate the critical role of shear and the Weyl curvature tensor, utilizing a damped harmonic oscillator framework to explicitly connect these concepts.
This paper investigates the persistence of black holes through a cosmological bounce in New General Relativity by analyzing a generalized McVittie spacetime, revealing that while the background evolution resembles a standard bounce, the local horizon dynamics are qualitatively altered and symmetry is disrupted at higher perturbative orders due to the theory's specific curvature renormalization and perturbation signs.
This paper proposes a theoretical framework that resolves the "cold start" paradox in warm inflation by utilizing classical conformal boundary conditions to deterministically generate an initial thermal bath, thereby enabling a smooth transition to the warm slow-roll attractor without requiring a pre-existing radiation source.
This paper establishes a consistent mapping between tidal Love numbers and Wilson coefficients in higher-curvature gravity effective field theories, identifying flaws in standard General Relativity matching approaches and explicitly demonstrating the procedure for cubic gravity.
This study analytically demonstrates that rotating charged de Sitter black holes in Conformal Weyl Gravity exhibit significant suppression of superradiant amplification for both massless and massive conformally coupled scalar fields compared to General Relativity, with the massive sector showing particularly strong exponential suppression in the cosmological region.
This paper establishes a formal gravity/thermodynamics correspondence by demonstrating that the cuspy features and self-intersection of black hole shadows map to swallowtail behavior in thermodynamic free energy, revealing that these geometric phase transitions belong to the mean-field universality class.
This paper infers recoil velocities for binary black hole merger events up to the GWTC-4 catalog, revealing that while most remnants are retained in massive galaxies, significant kick-induced displacements in dense stellar environments like globular clusters substantially suppress the likelihood of hierarchical mergers.
This paper investigates spontaneously vectorized black holes in Einstein-vector-Gauss-Bonnet theory, identifying both electrically charged spherically symmetric and uncharged axially symmetric magnetic solutions with radial excitations, while characterizing the domain of existence for rotating variants as bounded by Kerr black holes, static symmetric solutions, and critical limits.
This paper presents a comparative phase space analysis showing that while standard Quintessence models with cosh potentials admit stable late-time accelerating attractors, the light mass Galileon model fails to produce such stable solutions for the considered potentials, suggesting that higher-order Galileon interactions are necessary to explain the observed cosmic acceleration.
This paper demonstrates that braneworld cosmology within quasi-topological gravity featuring regular black hole solutions naturally induces a de Sitter inflationary phase at small scales driven solely by higher-curvature terms, thereby providing a mechanism for cosmic inflation that is independent of brane matter content and avoids trans-Planckian density issues.