⚛️ Category

gr-qc

4035 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

Formation and evolution of a 2-brane structure in multidimensional f(R)f(R) gravity

This paper investigates a multidimensional f(R)f(R) gravity model with a spatially flat 4D de Sitter cosmology, demonstrating that a two-brane structure nucleates at high energies with an inter-brane distance that expands as energy decreases, leading to energy-scale-dependent variations in fundamental physical parameters like the Planck mass and Higgs vacuum expectation value, which differ between the two branes.

Kirill A. Bronnikov, Arkady A. Popov, Sergey G. Rubin2026-01-22
⚛️ general relativity

Primordial black holes within Higgs hybrid metric-Palatini approach

This paper investigates the formation of primordial black holes as dark matter candidates within the Higgs hybrid metric-Palatini framework, demonstrating that enhanced primordial curvature perturbations can lead to a PBH abundance capable of accounting for all or part of the universe's dark matter depending on the coupling constant and e-folds number.

Brahim Asfour, Farida Bargach, Yahya Ladghami, Ahmed Errahmani, Taoufik Ouali2026-01-22
⚛️ high-energy theory

From MOND entropy to extended uncertainty principles: A unified framework

This paper establishes a unified framework linking generalised entropies, cutoff mechanisms, and extended uncertainty principles by deriving a novel MOND-based EUP from a recently proposed MOND entropy, demonstrating its consistency with various entropy models and its ability to generate modified Friedmann equations that encompass higher-order EUP results as limiting cases.

Özgür Sevinç, Özgür Ökcü, Ekrem Aydiner2026-01-22
⚛️ general relativity

Higher Harmonics of Double White Dwarfs in the Centihertz Band: Linking LISA and DECIGO

This paper demonstrates that while LISA cannot detect higher harmonics from most Galactic double white dwarfs, future decihertz-band observatories like DECIGO and BBO will be able to detect these signals for a significant fraction of inspiral binaries, thereby enabling statistical constraints on mass ratios and establishing a complementary strategy for space-based gravitational-wave astronomy.

Naoki Seto2026-01-22