⚛️ 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

Temperature Fluctuations and quantum corrections near Black Hole Horizon

This paper utilizes the Euclidean Gravity approach to demonstrate that spatially varying near-horizon temperature fluctuations in a Schwarzschild Black Hole are intrinsically linked to near-horizon supertranslations, allowing the derivation of temperature-dependent corrections to the free energy and a microscopic partition function that describe low-energy horizon physics as a sum over these supertranslations.

Anamika Avinash Pathak, Swastik Bhattacharya2026-03-13
⚛️ general relativity

Plasma effects on gravitational lensing and shadow observables of a Kerr-like black hole in a dark matter halo

This study investigates how dark matter and non-magnetized plasma influence the shadow and photon orbits of a Kerr-like black hole, revealing that while dark matter has negligible effects, plasma density significantly alters shadow size and deformation depending on its distribution profile, with these findings being constrained by Event Horizon Telescope observations of M87* and Sgr A*.

Connor McMillin, Zhichen Guan, Owen Gartlan, Lotus Liu, Leo Rodriguez, Shanshan Rodriguez2026-03-13
⚛️ general relativity

Spherically-symmetrical vacuum solution in Freund-Nambu scalar-tensor gravity

This paper presents a novel exact solution in Freund-Nambu scalar-tensor gravity that generalizes the Janis-Newman-Winicour naked singularity spacetime, analyzing its impact on particle dynamics and accretion to derive the first observational constraints on the model's parameters using twin-peak quasi-periodic oscillation data from microquasars.

Akbar Davlataliev, Bobur Turimov, Bobomurat Ahmedov, Yuri Vyblyi, Chengxun Yuan, Chen Zhou2026-03-13
⚛️ general relativity

Warm Inflation Beyond the Markovian Limit

This paper investigates warm inflation beyond the Markovian limit by demonstrating that finite correlation times in thermal baths generate colored noise which suppresses the primordial scalar power spectrum, thereby establishing a direct link between non-Markovian memory effects and the ratio of bath temperature to the Hubble scale while quantifying their impact on key cosmological observables.

Mayukh R. Gangopadhyay, Nilanjana Kumar2026-03-13
⚛️ general relativity

BBN to Late-Time Acceleration in f(T,Lm)f(T,\mathcal{L}_m) Gravity

This paper presents the first systematic study of early-to-late cosmic evolution in f(T,Lm)f(T,\mathcal{L}_m) gravity, demonstrating that a well-motivated model constrained by Big-Bang Nucleosynthesis bounds and supernova data successfully reproduces the observed late-time acceleration with quintessence-like behavior while remaining consistent with early-time physics.

Sai Swagat Mishra, Suchita Patel, P. K. Sahoo2026-03-13