2693 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 presents the first full inspiral-merger-ringdown analysis of the GW200105 neutron star-black hole merger using an aligned-spin eccentric waveform model, confirming strong evidence for orbital eccentricity while finding that other known NSBH events are consistent with circular orbits.
This paper nonperturbatively analyzes entanglement generation in a relativistic spin-boson model, revealing that significant bipartite entanglement requires deep light-cone interactions and can be enhanced by field mass, while genuine tripartite entanglement is difficult to classify, suggesting a need for alternative probing techniques for multipartite relativistic quantum fields.
This paper introduces DINGO-lensing, a deep learning framework that drastically reduces the computational time for identifying and characterizing gravitationally lensed gravitational waves from weeks to seconds while maintaining high accuracy in parameter estimation and statistical significance assessment.
This study uses 3D general-relativistic magnetohydrodynamic simulations to demonstrate that rapidly rotating millisecond proto-magnetars can launch ultra-relativistic jets within seconds of formation, as centrifugal forces create a dense equatorial wind that confines and collimates high-latitude outflows into structured bipolar jets capable of powering gamma-ray bursts.
This paper demonstrates that a specific quantum gravity framework establishes a duality between point particles and massive scalar fields, successfully reproduces black hole entropy consistent with effective field theory, and predicts quantum corrections to Hawking radiation that yield a Page-like curve through the direct encoding and leakage of interior information via the horizon.
This paper systematically constructs ghost-free scalar-tensor theories with third-order derivatives of the scalar field by imposing degeneracy and consistency conditions within a spatially covariant ADM framework, thereby extending generalized disformal Horndeski and U-DHOST theories while analyzing their transformation properties.
This paper demonstrates that Starobinsky's stochastic formalism, when applied to a specific component of the 1-loop effective potential, successfully captures the first sub-leading logarithms in scalar potential models on de Sitter space, a result verified at the 2-loop level for a massless, minimally coupled scalar with quartic self-interaction.
This paper demonstrates that Nash gravity, a five-dimensional embedding model generating metric perturbations through extrinsic curvature variations, offers a viable alternative to CDM by providing a good fit to DESI, Planck, and supernova data while simultaneously alleviating both the and tensions.
This paper presents a pseudocomplex General Relativity (pcGR) version of the FLRW model where dark energy emerges geometrically, yielding a time-dependent Hubble parameter and a non-zero Hubble acceleration that fits recent DESI BAO data and predicts a redshift drift consistent with CDM while offering a distinct, testable geometric signature.
This paper reports the first direct detection of gravitational waves on September 14, 2015, originating from the merger of a binary stellar-mass black hole system, a discovery that confirms the existence of such binaries and validates key predictions of general relativity.