⚛️ Category

gr-qc

3735 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.

⚛️ high-energy theory

Quantum State of a Gravitating Spacetime Region

This paper proposes a framework that associates quantum states to arbitrary closed spacetime regions by defining a gravitational Hilbert space via path integrals over complexified geometries, thereby establishing a correspondence between non-asymptotic spacetime regions and quantum states that explains the efficacy of tensor network models while revealing that von Neumann entropy is determined solely by maximin surfaces independent of complex deformations.

Raphael Bousso, Sami Kaya, Guanda Lin, Arvin Shahbazi-Moghaddam2026-09-11
⚛️ general relativity

Wave optical imaging of an oscillating electric dipole orbiting a black hole

This paper derives the electromagnetic radiation from an oscillating electric dipole orbiting a Kerr black hole using first-principles perturbation theory and develops a wave-optical imaging framework that reveals relativistic beaming, gravitational lensing, and polarization-dependent scattering effects beyond geometric optics.

Filipe Nazaré, João S. Santos, Vitor Cardoso, José Natário2026-09-11
🔬 physics

GW Explorer: A Beginner's Guide -- Developing a Computational Gravitational-Wave Outreach Curriculum for High School Students

This paper introduces "GW Explorer," an open-access, interactive Python-based curriculum designed to fill the gap in pre-college gravitational-wave education by engaging high school students in authentic astrophysics research through self-directed and mentor-guided formats, resulting in measurable gains in conceptual understanding and coding confidence.

Rachel Langgin, Bradlee Tejeda, Carl-Johan Haster2026-09-11
⚛️ high-energy theory

Spectral Suppression of Asymptotic States in Supersymmetric QFT on de Sitter Backgrounds

This paper proposes a structural infrared mechanism in supersymmetric quantum field theories on de Sitter backgrounds where long-wavelength gravitational fluctuations suppress asymptotic particle states and redistribute spectral weight to continuum sectors, a hypothesis tested through a cosmological realization that yields S8 and fS8 values consistent with benchmark observations without proving the underlying dark-sector assignment.

Stefano Bellucci, Stefania De Matteo2026-09-11
⚛️ general relativity

Constraining Modified Mass-to-Horizon Cosmology Through Primordial Inflationary Observables

This paper investigates slow-roll inflation within a modified cosmological framework based on a generalized mass-to-horizon relation, finding that while power-law potentials fail to meet current CMB constraints, Starobinsky inflation provides a sensitive probe that imposes a stringent bound of 0.960≲n≲1.0400.960 \lesssim n \lesssim 1.040 on the scaling parameter nn through scalar power-spectrum normalization.

A. Sheykhi, G. G. Luciano, A. Benkrane2026-09-11
⚛️ phenomenology

Higgsino dark matter in the Starobinsky supergravity with the MSSM in light of the LUX-ZEPLIN event

This paper proposes a nearly pure 1 TeV higgsino dark matter candidate within the Minimal Supersymmetric Standard Model coupled to Starobinsky supergravity, demonstrating that the model's predicted Higgs boson mass aligns with experimental observations for bino-induced mass splittings while excluding wino-induced scenarios, all in light of the recent LUX-ZEPLIN event.

Daniel Frolovsky, Sergei V. Ketov2026-09-11
⚛️ general relativity

Improving the Sensitivity of Gravitational Wave Detection with Weighted Conformal Prediction

This paper proposes a weighted conformal prediction framework that incorporates likelihood-ratio reweighting to correct for distribution shifts between simulated training data and real observations, thereby restoring statistically rigorous confidence estimates and improving the sensitivity of gravitational wave detection for compact binary mergers.

Ann-Kristin Malz, Gregory Ashton, Nicolo Colombo2026-09-11