3285 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 derives the effective action and radiative multipole moments for compact binary dynamics by analyzing angular momentum tail contributions, explicitly demonstrating that processes involving mass and current octupoles mixed with quadrupoles contribute to the system's evolution at the sixth post-Newtonian order.
This paper presents a numerically stable reformulation of Peters' equations in logarithmic space that enables standard solvers to converge without breaking at the merger point, thereby improving the computational efficiency of modeling compact binary orbital evolution by reducing function evaluations by 60% to 70%.
This paper presents the first full-sky relativistic bispectrum forecast for BINGO and SKA1-MID surveys, demonstrating that including second-order velocity contributions and bispectrum data significantly improves constraints on dark energy parameters and the Hubble constant by breaking degeneracies that limit power spectrum-only analyses.
This paper investigates a stationary vacuum Einstein solution comprising two non-extreme black holes with equal masses and opposite NUT charges connected by a Misner string, revealing that the inter-black-hole force transitions from distance-dependent attraction or repulsion to purely repulsive at small separations, while identifying a unique tensionless configuration that evades standard black hole uniqueness theorems and satisfies a generalized first law of mechanics.
This paper re-analyzes the far-zone contribution to conservative binary dynamics from gravitational tail emission, demonstrating that a standard computation procedure violates Lorentz gauge conditions and factorization for angular momentum, but that this anomaly can be resolved by re-absorbing it into a variation of a suitable action functional.
This paper proposes a theoretical framework for generating gravitationally mediated entanglement between the angular momenta of rotating masses via general relativistic frame dragging, offering a robust alternative to Newtonian-based schemes that is inherently insensitive to electromagnetic decoherence.
This paper establishes that manifolds with uniformly bounded geodesic return times or analytic metrics share the compactness and finite fundamental group properties of manifolds by demonstrating that such manifolds arise as Cauchy surfaces of observer-refocusing spacetimes, thereby linking their topological constraints to Lorentzian refocusing phenomena.
This paper proposes that an evaporating Schwarzschild black hole acts as nature's fastest information transmitter by saturating the maximal information transmission bound to prevent entropy divergence at the end of evaporation, while a de Sitter space functions as the fastest receiver by reproducing the trans-Planckian censorship conjecture under the same bound.
This paper establishes the existence and uniqueness of global finite energy solutions for the Maxwell-scalar field system in Lorenz gauge on the Einstein cylinder by combining conformal patching, Minkowski space results, data localization, and null form estimates, while noting that the solution exhibits small regularity losses in both the scalar field and potential due to the gauge's incomplete null structure.
This paper derives a closed-form metric for spherically symmetric static black holes obeying the vacuum equation of state with an arbitrary tangential pressure equation of state, thereby unifying regular and singular configurations, including the Kiselev black hole.