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.

A stable phase-locking-free single beam optical lattice with multiple configurations

This paper presents a stable, phase-locking-free method for generating optical lattices by passing a single laser beam through a prism with n-fold symmetric facets, successfully demonstrating various configurations like triangular and ten-fold quasi-crystal lattices with minimal lattice constant variation and positional drift.

Yirong Wang, Xiaoyu Dai, Xue Zhao, Guangren Sun, Kuiyi Gao, Wei Zhang2026-04-14🔬 physics.atom-ph

Applications of the Quantum Phase Difference Estimation Algorithm to the Excitation Energies in Spin Systems on a NISQ Device

This paper demonstrates the practical viability of a novel, constant-depth Quantum Phase Difference Estimation (QPDE) algorithm for accurately calculating excitation energy gaps in diverse spin systems on noisy intermediate-scale quantum (NISQ) devices, achieving 85% to 93% accuracy through advanced noise suppression techniques.

Boni Paul, Sudhindu Bikash Mandal, Kenji Sugisaki, B. P. Das2026-04-14🔬 physics.atom-ph

Multi-laser stabilization with an atomic-disciplined photonic integrated resonator

This paper demonstrates a scalable, low-cost photonic-integrated platform featuring a tunable silicon nitride resonator that stabilizes multiple lasers to an atomic transition, enabling compact and portable quantum sensing and computing applications.

Andrei Isichenko, Andrew S. Hunter, Nitesh Chauhan, John R. Dickson, T. Nathan Nunley, Josiah R. Bingaman, David A. S. Heim, Mark W. Harrington, Kaikai Liu, Paul D. Kunz, Daniel J. Blumenthal2026-04-14🔬 physics.atom-ph

K-shell ionization and characteristic x-ray radiation by high-energy electrons and positrons in oriented silicon crystals

This paper presents a detailed computer simulation method to investigate the non-monotonic evolution of K-shell ionization and characteristic x-ray radiation angular distributions from high-energy electrons and positrons traversing oriented silicon crystals across a wide energy range (1–1000 GeV), with a specific focus on the underlying physical mechanisms such as dechanneling.

S. V. Trofymenko, I. V. Kyryllin2026-04-14🔬 physics.atom-ph

A Theoretical Investigation of He I Line Profiles for the Spectroscopic Analysis of DB White Dwarfs

This paper presents a comprehensive investigation of He I line profiles for DB white dwarf spectroscopic analysis, utilizing SDSS DR17 data to compare traditional semi-analytical Stark profiles with new computer-simulated profiles while examining various physical effects such as frequency sampling, Doppler broadening, and 3D hydrodynamical corrections.

Patrick Tremblay, Pierre Bergeron, Alain Beauchamp2026-04-14🔬 physics.atom-ph

Polarization-Sensitive Third Harmonic Generation in resonant silicon nitride Metasurfaces for deep-UV Emission

This study demonstrates that CMOS-compatible silicon nitride metasurfaces can achieve polarization-selective, resonantly enhanced third-harmonic generation for efficient deep-UV emission, offering a simple structural alternative to complex materials for nonlinear photonics.

Shroddha Mukhopadhyay, Maria Antonietta Vincenti, Radu Malureanu, Crina Cojocaru, Michael Scalora, Jose Trull2026-04-14🔬 physics.atom-ph