The subatomic world is a realm where matter behaves in ways that defy our everyday intuition, and this category explores the fundamental building blocks of our universe. From the intricate dance of quarks inside a proton to the strange properties of electrons, these studies reveal the deep rules that govern everything from the smallest particles to the largest stars.

At Gist.Science, we track every new preprint in this field as it appears on arXiv, ensuring you stay ahead of the curve. For each discovery, we provide both a clear, plain-language explanation of the core ideas and a detailed technical summary for those who want to dive deeper into the mathematics and methodology.

Below are the latest papers in Atom-Ph, offering fresh insights into the structure and behavior of the atomic scale.

🔬 atomic physics

Interband Berry connection measurement in the optical honeycomb lattice

This paper demonstrates that the interband Berry connection in an optical honeycomb lattice can be directly mapped by measuring the resonant excitation strength of ultracold fermionic atoms under periodic lattice modulation, revealing key geometric features such as transparency lines and irreducible Dirac strings between specific energy bands.

Shao-Wen Chang, Malte N. Schwarz, Erin G. Moloney, Ke Lin, Dan M. Stamper-Kurn2026-05-13
🔬 atomic physics

Observation of Magnetically-Induced atomic transitions of the Cs 6S1/27_{1/2} \rightarrow 7P3/2_{3/2} line at 456 nm

This paper experimentally demonstrates and theoretically validates magnetically induced transitions of the Cs 6S1/27_{1/2} \rightarrow 7P3/2_{3/2} line at 456 nm, which exhibit high intensity and large frequency shifts in magnetic fields, suggesting their potential for high-resolution optical frequency references and magnetometers in the blue spectrum.

Armen Sargsyan, Arevik Amiryan, Emmanuel Klinger, David Sarkisyan2026-05-13
🔬 atomic physics

Analytical emission model for the design of primary effusive sources

This paper presents an improved analytical emission model based on a secondary-emission-surface approach that accurately predicts the angular intensity distribution and flux properties of primary effusive sources across the full range of molecular flow, from transparent to opaque regimes, to guide the design of efficient sources for atomic and molecular physics experiments.

I. N. Ashkarin, J. Cheayto, P. Cheinet, D. Comparat, S. Lepoutre2026-05-13
⚛️ nuclear experiments

Charge radii of Cl isotopes from x-ray spectroscopy of muonic atoms

Using high-precision x-ray spectroscopy of muonic chlorine atoms combined with advanced theoretical calculations, researchers determined the charge radii of stable 35^{35}Cl and 37^{37}Cl isotopes with an order-of-magnitude improvement in precision, resolving previous discrepancies in mirror nuclei trends and establishing new reference values for future studies.

K. A. Beyer, T. E. Cocolios, C. Costache, P. Demol, M. Deseyn, A. Doinaki, O. Eizenberg, M. Gorchtein, M. Heines, A. Her (…)2026-05-12
🔬 atomic physics

Parity Nonconservation in Hydrogen Induced by Low-Mass Vector-Boson Exchange

This paper calculates the ratio of low-mass ZZ'-boson to Standard Model ZZ-boson contributions to parity nonconservation in hydrogen and deuterium, demonstrating that these light atoms offer a theoretically clean and highly sensitive environment for detecting hypothetical new vector bosons due to the rapid increase in the ZZ' signal relative to the Standard Model background as nuclear charge decreases.

V. A. Dzuba, V. V. Flambaum, G. K. Vong2026-05-12