🔬 Category

physics.atom-ph

566 papers

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.

Interaction of twisted light with free twisted atoms

This paper investigates the interaction between structured light and free atoms modeled as wave packets, demonstrating that vortex photons can efficiently transfer orbital angular momentum to atomic centers of mass, induce recoil effects like the "superkick" and "selfkick," and enable dipole-dominated electronic transitions that violate standard selection rules, all of which are experimentally accessible using cold atomic beams and Penning traps.

I. Pavlov, A. Chaikovskaia, D. Karlovets2026-04-07🔬 physics.atom-ph

Spectral-Domain Coherent Control of Broadband Raman Coupling in Atom Interferometry

This paper demonstrates that engineering the effective two-photon spectrum of Raman coupling through spectral-domain coherent control significantly enhances the fringe contrast and effective atomic participation in atom interferometers by overcoming limitations imposed by large Doppler shifts and inhomogeneous broadening.

Sheng-Zhe Wang, Wei-Chen Jia, Yue Xin, Qian-Lan Cai, Yingpeng Zhao, Yan-Ying Feng2026-04-07🔬 physics.atom-ph

Photoelectron spectroscopy of 3s3p doubly excited helium dressed with strong near-infrared laser fields

This study combines time-resolved photoelectron spectroscopy with *ab initio* theory to demonstrate how intense near-infrared laser fields induce coupling between bright and dark doubly excited helium states, enabling quantitative control and characterization of correlated two-electron resonances.

Mizuho Fushitani, Chien-Nan Liu, Yuki Ono, Shunsuke Amaike, Wataru Yamazaki, Keiko Kato, Akitaka Matsuda, Shigeki Owada, Makina Yabashi, Yasumasa Hikosaka, Toru Morishita, Akiyoshi Hishikawa2026-04-07🔬 physics.atom-ph

Elucidating Au-C Bonding via Laser Spectroscopy of Gold Monocarbide

This paper reports the first experimental observation and laser spectroscopic characterization of gas-phase gold monocarbide (AuC), providing detailed insights into its electronic structure, bond dissociation energy, and radiative properties to serve as benchmarks for relativistic theory and applications in quantum science.

Rory M. Weldon, Danielle M. Darling, Nicole M. Albright, Kendall L. Rice, Phaedra L. Salerno, K. Cooper Stuntz, Benjamin L. Augenbraun2026-04-07🔬 physics.atom-ph

Continuous thermochemical sources of AlF molecules

This paper presents a compact, continuous AlF molecular beam source based on a thermochemical reaction between sublimated aluminum trifluoride and aluminum metal, demonstrating high brightness, successful cryogenic buffer gas cooling to 30 K, and the potential for direct loading into a molecular magneto-optical trap.

Pulkit Kukreja, Priyansh Agarwal, Maximilian Doppelbauer, Jionghao Cai, Xiangyue Liu, Eduardo Padilla, Sebastian Kray, Henrik Haak, Russell Thomas, Stefan Truppe, Boris G. Sartakov, Gerard Meijer, Sid (…)2026-04-07🔬 physics.atom-ph

Angle-resolved photoelectron spectroscopy of the DABCO molecule probed with VUV radiation

Using VUV synchrotron radiation and ion-electron coincidence spectroscopy, this study accurately determines the adiabatic ionization energy of DABCO, resolves two vibrational progressions in its ground state cation, and attributes the vibrational dependence of the photoelectron angular distribution anisotropy to scattering mediated by high-lying Rydberg states.

Audrey Scognamiglio, Lou Barreau, Constant Schouder, Denis Cubaynes, Bérenger Gans, Éric Gloaguen, Gustavo A. Garcias, Laurent Nahon, Lionel Poisson2026-04-06🔬 physics.atom-ph

The Bell-Bloom-type optically-pumped FID Rubidium atomic magnetometer with a multi-passing probe beam and two counter-propagating pump beams

This paper presents and experimentally validates a Bell-Bloom-type optically pumped rubidium FID magnetometer utilizing counter-propagating pump beams and a multi-pass probe configuration to homogenize spin polarization and enhance signal amplitude, thereby improving magnetic field sensitivity from 18.9 pT/√Hz to 3.1 pT/√Hz.

Yongbiao Yang, Zhengyu Su, Yang Li, Yanhua Wang, Jun He, Xiaojun Jia, Junmin Wang2026-04-06🔬 physics.atom-ph