2532 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 demonstrates that primordial black holes can still form during slow first-order phase transitions via an early matter-dominated era induced by slow reheating, a mechanism previously thought to be ruled out, resulting in the production of black holes with large spins.
This paper introduces a covariant perturbative framework demonstrating that photons traversing a perturbed Kerr spacetime during black hole ringdown exhibit a distinct, achromatic polarization-angle swing that directly tracks the underlying gravitational quasi-normal modes, thereby opening a new polarimetric window for observing black hole mergers.
This paper investigates the stability and quasi-normal ringing of analogue black-white holes in SNAIL-based traveling-wave parametric amplifiers by deriving a master equation for the probe field, proving stability via supersymmetric quantum mechanics, and analyzing quasi-normal modes to determine the timescale for nonlinear dispersion effects.
This paper proposes a unified geometric model within f(Q,L_m) gravity that successfully describes both early-time Starobinsky-like inflation and late-time accelerated expansion via Holographic Ricci Dark Energy, while demonstrating consistency with observational data and incorporating sub-leading quantum corrections from the Relativistic Generalized Uncertainty Principle.
This paper demonstrates that a gravity-scalar system with a scale-dependent kinetic form factor admits a non-trivial asymptotically safe fixed point characterized by non-local scaling behavior at the cutoff scale that becomes local in the continuum limit.
This paper constructs an effective-field-theory framework that bridges late-time scalar-tensor cosmology and black-hole ringdown observables, demonstrating how cosmological constraints can inform strong-field priors while revealing that operators vanishing in homogeneous backgrounds may still remain active in the anisotropic near zone of black holes.
This paper investigates causality in curvature-squared gravity by analyzing Gödel, Gödel-type, and axially symmetric cosmological solutions, finding that the first two models permit closed timelike curves while eliminating Weyl tensor contributions, whereas the third model reveals Weyl tensor effects that modify the weak energy condition.
This paper proposes a general post-Newtonian gravitational collapse model derived from linearized gravity that extends the Diósi-Penrose mechanism to include rotational and mixed mass-rotation degrees of freedom by incorporating both gravitoelectric and gravitomagnetic couplings.
This paper investigates how classical polymerization and generalized uncertainty principle (GUP) deformations alter the dynamics of the Bianchi IX Mixmaster universe, revealing that while GUP corrections enhance chaos by shortening Kasner epochs, polymer corrections suppress it by prolonging them, with combined effects producing an additive shift that modulates the strength of early-universe chaos.
This paper introduces the phenomenological parameter to quantify charge-dependent violations of the Equivalence Principle, establishes a new experimental bound of , and argues that measuring this parameter offers a unique, unexplored pathway to detect new physics beyond minimal gravitational effective field theories.