physics.atom-ph papers | Gist.Science

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.

Orders-of-magnitude improvement in precision spectroscopy of an inner-shell orbital clock transition in neutral ytterbium

This paper reports a nearly two-orders-of-magnitude improvement in the precision spectroscopy of an inner-shell orbital clock transition in neutral ytterbium using a three-dimensional magic-wavelength optical lattice, enabling high-precision isotope shift measurements that set new bounds on hypothetical boson-mediated forces and advance applications in quantum science and new physics searches.

Taiki Ishiyama, Koki Ono, Hokuto Kawase, Tetsushi Takano, Reiji Asano, Ayaki Sunaga, Yasuhiro Yamamoto, Minoru Tanaka, Yoshiro Takahashi2026-03-24⚛️ nucl-ex

Trapping of electrons and $^{40}\textrm{Ca}^+$ ions in a dual-frequency Paul trap

This paper demonstrates the successful operation and characterization of a dual-frequency Paul trap capable of storing both electrons and calcium ions, providing critical insights into its performance dynamics and potential for future antihydrogen synthesis.

Vladimir Mikhailovskii, Natalija Sheth, Guofeng Qu, Michal Hejduk, Niklas Vilhelm Lausti, K. T. Satyajith, Christian Smorra, Günther Werth, Neha Yadav, Qian Yu, Clemens Matthiesen, Hartmut Häffner, Fe (…)2026-03-24🔬 physics.atom-ph

Verification and experimental validation of neutral atom beam source produced by L-PBF

This paper reports the successful fabrication, characterization, and experimental validation of a calcium atomic-beam source produced via Laser Powder Bed Fusion, demonstrating its capability to deliver a sufficient atomic flux for electron and ion trapping experiments in an ultra-high-vacuum environment.

Vineet Kumar, Niklas V. Lausti, Peter Kúš, Adam Jelínek, Ivan Hudák, David Motyčka, Petr Dohnal, Radek Plašil, Jiří Hajnyš, Michal Hejduk2026-03-24🔬 physics.atom-ph

Tuning interactions between static-field-shielded polar molecules with microwaves

This paper proposes and validates a general method to widely tune the interactions between static-field-shielded polar molecules by applying a microwave field, enabling control over both s-wave scattering lengths and dipole lengths while maintaining strong suppression of collisional losses.

Christopher J. Ho, Joy Dutta, Bijit Mukherjee, Jeremy M. Hutson, Michael R. Tarbutt2026-03-24🔬 physics.atom-ph

Relativistic nuclear recoil effects in hyperfine splitting of hydrogenic systems

This paper calculates finite nuclear mass corrections to the hyperfine splitting in hydrogenic systems using a combined relativistic and nonrelativistic QED approach, finding results that disagree with previous calculations and reveal a $2\sigma$ discrepancy with hydrogen measurements that may point to issues with proton structure corrections.

Jakub Hevler, Andrzej Maron, Krzysztof Pachucki2026-03-24🔬 physics.atom-ph

Order in the interference of a long chain of Bose condensates with unrestricted phases

This paper demonstrates that a long chain of Bose condensates with unrestricted phases exhibits distinct spatial interference orders depending on phase relationships, where equal phases produce the Talbot effect while random or disordered phases generate qualitatively different fringe evolution, offering a method to measure inter-condensate coherence and correlation length.

Vasiliy Makhalov, Andrey Turlapov2026-03-24🔬 physics.atom-ph

Interference of a chain of Bose condensates in the Pitaevskii-Gross approximation

This paper utilizes the Pitaevskii-Gross equation to theoretically model the interference and spatial density spectrum of a freely expanding chain of Bose condensates, successfully reproducing the experimental peak positions and their dependence on interparticle interactions while noting discrepancies in peak heights.

I. N. Mosaki, A. V. Turlapov2026-03-24🔬 physics.atom-ph

Barium Magnesium Alloy as Source of Atomic Ba for Ion Trapping

This paper demonstrates that a resistively heated oven loaded with a barium-magnesium alloy serves as a safe, non-reactive, and effective source for generating barium vapor, enabling the reliable trapping of $^{138}\text{Ba}^+$ ions for quantum computing applications comparable to those using elemental barium.

Jane Gunnell, Thomas Griffiths, Boris B. Blinov2026-03-24🔬 physics.atom-ph

$T^{-3}$ -shift in a short-baseline atomic interferometer-gravimeter

This paper reports the first experimental observation of a lineshape-asymmetry-caused shift (LACS) in a short-baseline atomic interferometer-gravimeter, demonstrating that this systematic error scales as $T^{-3}$ and can significantly affect high-precision measurements of gravitational acceleration.

D. N. Kapusta, A. E. Bonert, A. N. Goncharov, V. I. Yudin, K. N. Adamov, A. V. Taichenachev, M. Yu. Basalaev, M. D. Radchenko, O. N. Prudnikov2026-03-24🔬 physics.atom-ph

Precision spectroscopy of a trapped $^{173}$ Yb $^+$ ion using a bath of ultracold atoms

This paper demonstrates precision laser spectroscopy of a trapped $^{173}$ Yb $^+$ ion cooled by ultracold atoms via spin-exchange collisions, yielding magnetic and electric hyperfine interaction constants for the $6^2P_{3/2}$ state that are 6–9 times more precise than previous measurements.

Egor Kovlakov, Rene Gerritsma2026-03-24🔬 physics.atom-ph

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