🔬 Category

physics.atom-ph

630 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.

🔬 atomic physics

Bell Correlations from Prepared Coherence in Entangled Dirac Wavepackets

This paper demonstrates that Bell correlations in entangled Dirac wavepackets arise from source-prepared amplitude and phase coherence, yielding a separation-dependent CHSH value that transitions from the maximal quantum violation at zero separation to a coherence-controlled asymptotic limit, thereby supporting a wave-realist interpretation where nonseparable quantum correlations are compatible with relativistic causal locality without requiring superluminal causation.

Ju Gao, Fang Shen2026-05-26
🔬 atomic physics

Dual Role of Nb in Defect-Mediated Strength and Ductility of γ-TiAl Alloys

This study utilizes advanced simulations to reveal that Nb atoms in γ\gamma-TiAl alloys simultaneously enhance high-temperature strength by increasing Peierls stress and improve ductility by reducing stacking fault energies through the formation of specific antisite defects, thereby resolving the controversy over Nb's dual role.

Zhiqiang Zhao, Siyao Shuang, Kepeng Ouyang, Maolin Yu, Junping Du, Liangli Chu, Xiaokai Chen, Shigenobu Ogata, Wanlin Gu (…)2026-05-26
🔬 atomic physics

Spatial dealiasing of classical geomagnetic survey data through use of a microfabricated wearable quantum magnetometer

This paper demonstrates that integrating a high-bandwidth, wearable optically pumped magnetometer (OPM) with traditional proton precession magnetometers (PPM) during a 20 km survey in Scotland effectively mitigates spatial aliasing and anthropogenic noise, enabling the detection of previously unresolved small-scale geological structures.

Stirling Scholes, Alissa Forsythe, Courtney Dyer, Amy Gilligan, Karen Lythgoe, Jenny Jenkins, Marcin Mrozowski, Jack-And (…)2026-05-25
🔬 atomic physics

Vapor-Cell-Induced Uncertainty in Rydberg Atom Measurements via the Electric-Field Volume-Integral-Equation Method

This paper utilizes the electric-field volume-integral-equation method to demonstrate that for vapor cells smaller than half a wavelength, uncertainty in glass relative permittivity is the dominant error source in Rydberg atom electric-field measurements, yielding a total uncertainty of approximately 3.5% that could be reduced to under 1% with more precise permittivity data.

Martin Stumpf, William J. Watterson, Rajavardhan Talashila, Matt T. Simons, Alexandra Artusio-Glimpse, Lawrence Carslake (…)2026-05-25
🔬 atomic physics

Color2Struct: efficient and accurate deep-learning inverse design of structural color with controllable inference

This paper introduces Color2Struct, a universal deep-learning framework that significantly enhances the accuracy and controllability of inverse structural color design through sampling bias correction, adaptive loss weighting, and physics-guided inference, enabling applications in high-end displays and solar energy harvesting.

Sichao Shan, Han Ye, Zhengmei Yang, Junpeng Hou, Zhitong Li2026-05-22
🔬 atomic physics

Quantum theory of electrically levitated nanoparticle-ion systems: Motional dynamics and sympathetic cooling

This paper presents a theoretical framework for the quantum coupled dynamics of a nanoparticle and an ion ensemble in a dual-frequency Paul trap, demonstrating that sympathetic cooling via Coulomb coupling can achieve sub-kelvin to millikelvin temperatures and enabling the preparation of non-Gaussian motional states.

Saurabh Gupta, Bernard Faulend, Dmitry S. Bykov, Tracy E. Northup, Carlos Gonzalez-Ballestero2026-05-22
🔬 atomic physics

X-ray and extreme-ultraviolet spectra from collisions of Ar18+^{18+} and O8+^{8+} ions with neutrals

This paper presents experimental measurements of K-shell x-ray and extreme-ultraviolet spectra resulting from charge exchange collisions of fully ionized argon and oxygen ions with neutral gases in an electron beam ion trap, comparing these findings with theoretical multichannel Landau-Zener models to analyze observed discrepancies.

Stepan Dobrodey, Chintan Shah, Sonja Bernitt, Ming Feng Gu, Liyi Gu, Thomas Pfeifer, José R. Crespo López-Urrutia2026-05-22
🔬 atomic physics

Observation of resonant monopole-dipole energy transfer between Rydberg atoms and polar molecules

This paper reports the experimental observation and theoretical confirmation of resonant monopole-dipole energy transfer between helium Rydberg atoms and ammonia molecules, a process driven by charge-dipole interactions and requiring spatial wavefunction overlap, which establishes a new mechanism for energy exchange in hybrid quantum systems.

J. Zou, R. R. W. Wang, R. González-Férez, H. R. Sadeghpour, S. D. Hogan2026-05-21
🔬 atomic physics

Nonperturbative regime of low-order harmonic generation in intense low-frequency laser field

This paper demonstrates that while standard perturbation theory fails for atomic responses in intense low-frequency laser fields above 0.6×10140.6 \times 10^{14} W/cm2^2, a Padé expansion fitted to numerical TDSE solutions effectively describes the nonperturbative regime up to 1.4×10141.4 \times 10^{14} W/cm2^2 and successfully models the intensity-dependent growth of third and fifth harmonic generation and optical rectification, despite limitations in predicting the nonlinear refractive index.

S. A. Bondarenko, V. V. Strelkov2026-05-21