⚛️ Category

gr-qc

3949 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.

⚛️ general relativity

Generalized JMN Naked Singularity Models

This paper constructs a generalized class of Joshi-Malafarina-Narayan naked singularity models with radially dependent mass functions and non-vanishing tangential pressure, demonstrating that while accretion disk spectra exhibit enhanced high-frequency emission, the resulting shadow remains indistinguishable from a Schwarzschild black hole when the photon sphere lies in the exterior region, thereby confirming the robustness of JMN-type geometries as small perturbations.

Jay Verma Trivedi, Pankaj S. Joshi2026-03-24
⚛️ general relativity

Non-local gravity effects in cosmological dynamics probed by IceCube/KM3NeT signals and dark matter relic abundance

This paper investigates how non-local gravity models, reduced to scalar-tensor theories via Noether symmetries, can simultaneously explain the high-energy astrophysical neutrino fluxes observed by IceCube/KM3NeT and the cosmological abundance of dark matter through a specific four-dimensional operator.

Salvatore Capozziello, Gaetano Lambiase, Giuseppe Meluccio2026-03-24
⚛️ general relativity

Causal Structure of Spacetime Singularities and Their Observable Signatures

This paper analyzes the causal structure and geodesic dynamics of horizonless JMN-1 and JNW spacetimes to demonstrate how their distinct singularity types and effective repulsive behaviors produce unique strong-field lensing and shadow signatures that could be observationally distinguished from black holes by instruments like the Event Horizon Telescope.

Bina Patel, Jahnvi Mistry, Ayush Bidlan, Parth Bambhaniya2026-03-24
⚛️ general relativity

A new approach towards the construction of initial data in general relativity with positive Yamabe invariant and arbitrary mean curvature

This paper presents a new proof for the existence of solutions to the conformal method equations in general relativity using the Banach fixed point theorem, which offers the distinct advantages of guaranteeing solution uniqueness under a volume bound and providing an explicit construction, unlike the original Schauder-based approach.

Armand Coudray, Romain Gicquaud2026-03-24
⚛️ general relativity

Infrared Corrections and Horizon Phase Transitions in Kaniadakis-Based Holographic Dark Energy

This paper proposes a Kaniadakis-based holographic dark energy model that modifies apparent horizon dynamics through infrared corrections, revealing Van der Waals-like phase transitions and unstable thermodynamic branches while demonstrating observational viability through joint analysis of cosmic chronometers, supernovae, and baryon acoustic oscillation data.

Manuel Gonzalez-Espinoza, Samuel Lepe, Joel F. Saavedra, Francisco Tello-Ortiz2026-03-24