2489 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 study demonstrates that non-canonical chaotic inflation models with potential indices , , and $1$ can be revived within the confidence intervals of high-precision cosmological data (ACT DR6 and BICEP/Keck) by establishing tight physical bounds on the non-canonical parameter and confirming a natural convergence to approximately 54 -foldings.
This paper investigates static electromagnetic and gravitational perturbations of five-dimensional Myers-Perry black holes, demonstrating that while the electric polarization reduces to a massless scalar field, the magnetic and gravitational sectors yield special Heun equations with exact hypergeometric solutions that reveal a non-trivial mixing of angular momentum modes in the static tidal Love tensors.
This paper proposes a new fundamental mechanism where the optical Magnus effect, through helicity-dependent transverse shifts in gravitational lensing, induces circular polarization in the cosmic microwave background from temperature fluctuations, although the resulting signal remains far below current detection capabilities.
This paper demonstrates that nonlinear electrodynamics significantly alters photon propagation in magnetars, causing approximately 10% errors in inferred stellar radii and inducing systematic timing delays of ~350 ns that exceed current mission resolutions, thereby necessitating corrections for high-precision neutron star mass and radius measurements.
This paper investigates the Joule-Thomson expansion and thermodynamic efficiency of a deformed AdS-Schwarzschild black hole in the presence of quintessence, demonstrating how the deformation parameters , , and collectively govern the system's heating-cooling behavior, thermal stability, and heat engine efficiency.
This paper demonstrates that the Laser Interferometer Space Antenna (LISA) can detect and constrain the masses and self-interaction strengths of axion-like particles forming gravitational atoms around black holes by analyzing the dephasing effects they induce on gravitational waveforms from extreme- and intermediate-mass-ratio inspirals.
This paper formulates junction conditions for Scalar-Tensor-Vector Gravity (STVG) to model gravitational collapse, demonstrating that an interior FLRW spacetime can match with an exterior Reissner-Nordström-like spacetime via a charged shell to form RN-like black holes in finite proper time.
This paper investigates the scattering, absorption, and greybody factors of spin-0 particles by electrically charged black holes within two Lorentz-violating gravity models (the bumblebee and Kalb-Ramond models), utilizing the partial waves method to demonstrate how Lorentz violation parameters and electric charge influence these physical processes.
This paper proposes a renormalizable and unitary model of quantum gravity that utilizes a Lagrange multiplier field to restrict one-loop quantum corrections to the Einstein-Hilbert action while ensuring the recovery of classical Einstein field equations.
This paper investigates slow-roll inflation within Kaniadakis and dual Kaniadakis cosmologies, demonstrating that while the deformation parameter is tightly constrained by Planck data, viable inflationary scenarios compatible with current observations can be achieved, suggesting a potential link between non-extensive thermodynamics and early universe physics.