3884 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 employs state-of-the-art LISA simulations and Bayesian analysis to evaluate the observatory's capability to detect and characterize the gravitational-wave displacement memory effect from individual massive black hole binary mergers, thereby establishing detection criteria, reconstruction precision, and expected event rates for testing General Relativity.
This paper demonstrates that Scalar-Tensor-Vector Gravity (STVG-MOG) can reproduce the Cosmic Microwave Background acoustic power spectra of the standard CDM model without particle dark matter by utilizing nonrelativistic excitations of a massive vector field that dynamically mimic a pressureless dust component in the early universe.
This paper investigates the properties of rotating Kaluza-Klein black holes surrounded by massive vector and scalar fields, analyzing their horizon structure, thermodynamic phase transitions, topological classification, and astrophysical signatures like shadows and accretion disks to demonstrate how extra-dimensional effects modify observable features while preserving the system's fundamental topological stability.
This paper presents a semiclassical framework combining 2D dilaton gravity and Polyakov anomaly backreaction to demonstrate that Reissner–Nordström–de Sitter black holes undergo rapid discharge via Schwinger pair production followed by monotonic mass loss, ultimately evolving toward empty de Sitter space rather than settling into classical extremal or lukewarm attractors.
This paper investigates how quartic scalar self-interactions influence asymptotically flat, balanced configurations of two spinning black holes with synchronised scalar hair, revealing that repulsive interactions drive topological changes in ergoregions and broaden analytical models but cannot increase horizon mass, whereas attractive interactions are required to achieve larger mass fractions.
This paper investigates the conformal anomaly in a vector field model by introducing an auxiliary scalar compensator to preserve gauge symmetry and unitarity within dimensional regularization, revealing that this scalar acquires independent dynamics and exhibits unique properties in the four-dimensional limit.
This paper analyzes the electric Penrose process in a magnetized Reissner-Nordström black hole, demonstrating how an external magnetic field induces an ergosphere and acts as a control parameter that governs both the configuration of the energy extraction region and the process's efficiency through analytical expressions for critical magnetic fields.
This paper presents the first fully nonlinear numerical relativity simulations of charged black hole mergers, demonstrating that electromagnetic duality induces a degeneracy in gravitational dynamics while rotating the polarization of emitted electromagnetic radiation by the duality angle.
This paper employs the spinoptics formalism to demonstrate that helicity-curvature interactions induce significant out-of-plane light deflection in spherically symmetric hairy black holes, revealing distinct imprints of the Rezzolla–Zhidenko parametrization and hairy parameters while evaluating the viability of using the former to mimic the latter.
This paper investigates the optical, thermodynamic, and scattering properties of a ModMax black hole surrounded by a cloud of strings within Einstein-bumblebee gravity, analyzing how parameters like Lorentz symmetry violation and the cloud of strings influence Hawking temperature, entropy, and greybody factors for various spin fields.