3805 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 reformulates four-dimensional chiral gravity using a soldered chiral superconnection to derive Einstein–Cartan–Holst gravity with a cosmological term, while introducing a spinorial BF-type term to generate propagating fermions that couple to torsion.
Using the Worldline Quantum Field Theory framework, this paper computes the classical gravitational Compton amplitude to the fifth post-Minkowskian order and demonstrates that matching the result to black-hole perturbation theory confirms the vanishing static Love numbers of a Schwarzschild black hole.
This paper combines numerical simulations and semi-analytic modeling to demonstrate that ultralight bosons can form "gravitational molecules" around comparable-mass binaries, where eccentricity-induced ionization drives efficient orbital circularization and significantly alters the stochastic gravitational wave background.
This paper investigates a logarithmic f(T) modified teleparallel gravity model, demonstrating through Pantheon+SH0ES and cosmic chronometer data that its quadratic H(z) expansion yields an accelerated universe with a deceleration parameter of and effective energy dynamics resembling quintessence and phantom models.
This paper proposes a relativistic extension of Modified Newtonian Dynamics (MOND) derived from temperature-corrected entropic gravity, which successfully reproduces galactic rotation curve data for NGC 3198 with accuracy comparable to dark matter models while offering a unified relativistic framework for MOND phenomenology.
This paper introduces a scalable framework that utilizes normalizing flows to construct physics-informed priors incorporating neutron star physics and equation of state constraints, thereby improving source classification and yielding tighter, more accurate parameter estimates for gravitational wave events compared to traditional agnostic priors.
This paper argues that extremal black holes are astrophysically implausible in our universe by demonstrating that Schwinger discharge imposes a mass limit exceeding for charged holes, Lee-Nair-Weinberg instabilities and enhanced pair production render magnetic charges cosmologically unviable, and superradiant scattering likely drains angular momentum from extremal Kerr black holes.
This paper revisits the Modified Chaplygin Gas model to derive an exact emergent universe solution that avoids initial singularities, transitions from deceleration to acceleration, and remains consistent with current CMB and Hubble observational data.
This paper presents the first measurement of the Hubble constant ( km sMpc) and a constraint on the gravitational wave bias by detecting a cross-correlation peak between gravitational wave events and galaxy distributions using the "Peak Sirens" method.
This paper demonstrates how the space spinor formalism can be adapted to construct estimates for spinor fields satisfying first-order equations, drawing parallels with the positive commutator method for second-order hyperbolic equations while recasting concepts of hyperbolicity within the spinor context.