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

Electron impact excitation of Te IV and V and Level Resolved R-matrix Photoionization of Te I - IV with application to modelling of AT2017gfo

This paper presents new R-matrix and MCDHF atomic data for tellurium ions (Te I–V), including electron-impact excitation and photoionization cross-sections, to improve kilonova spectral modeling and investigate Te IV's potential contribution to the 1.08 μm emission feature in AT2017gfo.

Leo P. Mulholland, Catherine A. Ramsbottom, Connor P. Ballance, Albert Sneppen, Stuart A. Sim2026-02-25
🔬 atomic physics

A Compact Dual-Beam Zeeman Slower for High-Flux Cold Atoms

This paper presents a compact 44-cm dual-beam Zeeman slower design that utilizes oblique laser beams and a capillary-array collimation system to significantly enhance cold atom flux for 2D-MOT loading while nearly eliminating window contamination, as validated by simulations and experiments with Rubidium and Ytterbium.

Chen Chen, Kejun Liu, Dezhou Deng, Shuchang Ma, Peng Zhu, Zhichang He, J. F. Che, Xiaoxiao Wu, Peng Chen2026-02-25
🔬 atomic physics

Revealing Pseudo-Fermionization and Chiral Binding of One-Dimensional Anyons using Adiabatic State Preparation

Using ultracold atoms in an optical lattice, the authors experimentally demonstrate pseudo-fermionization and chiral binding in one-dimensional anyons by preparing ground states of the anyon-Hubbard model through Hamiltonian engineering and adiabatic manipulation, thereby bridging theoretical predictions with observable signatures in both equilibrium and non-equilibrium settings.

Brice Bakkali-Hassani, Joyce Kwan, Perrin Segura, Yanfei Li, Isaac Tesfaye, Gerard Valentí-Rojas, André Eckardt, Markus (…)2026-02-25
🔬 atomic physics

Two-photon interference between mutually-detuned resonance fluorescence signals scattered off a semiconductor quantum dot

This study systematically investigates how driving detuning affects photon indistinguishability from an InAs quantum dot, revealing that while small detunings align with a pure-state spontaneous emission model, larger detunings produce anomalous two-photon interference features characterized by a normalized second-order correlation function below 0.5 under orthogonal polarizations.

Guoqi Huang, Jian Wang, Ziqi Zeng, Hanqing Liu, Li Liu, Weijie Ji, Bang Wu, Haiqiao Ni, Zhichuan Niu, Rongzhen Jiao, Dav (…)2026-02-24
🔬 atomic physics

Degenerate mirrorless lasing in thermal vapors

This paper demonstrates that a distinct sideband gain peak, typically obscured by Doppler broadening in thermal vapors, can be sustained in warm alkali atom systems when the pump Rabi frequency and detuning exceed the Doppler width, thereby enabling degenerate mirrorless lasing for enhanced remote magnetic sensing.

Aneesh Ramaswamy, Dmitry Budker, Simon Rochester, Aram Papoyan, Svetlana Shmavonyan, Himadri Parashar, Vladimir V. Malin (…)2026-02-24
🔬 atomic physics

Ab Initio Calculations of the Static and Dynamic Polarizability of BaOH

This paper presents high-precision relativistic coupled-cluster calculations of the static and dynamic polarizabilities for the ground and (010) vibrational states of BaOH, establishing a rigorous uncertainty quantification procedure and validating the results through comparison with experimental dipole moment data.

E. H. Prinsen, A. Borschevsky, S. Hoekstra, A. K. Dutta, S. Chakraborty, B. J. Schellenberg, L. F. Pašteka, I. A. Aucar2026-02-24
🔬 atomic physics

Collective light shifts of many longitudinal cavity modes induced by coupling to a cold-atom ensemble

This paper experimentally demonstrates the collective light shifts of over 100 longitudinal cavity modes induced by coupling to a cold-atom ensemble, revealing new physics beyond single-mode interactions and establishing a foundation for multifrequency cavity quantum electrodynamics.

Marin Ðujić, Mateo Kruljac, Lovre Kardum, Neven Šantić, Damir Aumiler, Ivor Krešić, Ticijana Ban2026-02-23
🔬 atomic physics

RydIQule: A Graph-based Paradigm for Modelling Rydberg and Atomic Systems

The paper introduces RydIQule, an open-source Python package that utilizes a graph-based paradigm to efficiently generate Hamiltonians and solve semi-classical Bloch equations for multi-level atomic systems, enabling rapid simulation of complex scenarios like Doppler-broadened Rydberg sensors on standard hardware.

Benjamin N. Miller, David H. Meyer, Teemu Virtanen, Christopher M. O'Brien, Kevin C. Cox2026-02-19