725 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.
This paper demonstrates a scanning cavity technique that dynamically maps laser detuning to transverse position to overcome alignment limitations, thereby achieving large-area, uniform coherent coupling that significantly enhances transfer efficiency and enables phase-coherent atom interferometry.
This paper proposes a general implementation of staggered quantum walks on arbitrary spatial networks using Rydberg atoms, featuring an efficient tessellation construction algorithm that achieves a quadratic speedup in spatial search tasks.
The authors derive a first-principles, scalable model to accurately describe interactions in Rydberg superatoms, validating it against numerical and experimental data to enable quantitative predictions for quantum network applications.
This paper investigates how the tunneling time delay, arising from the under-the-barrier recollision pathway in nonadiabatic ionization, is modified by high-order strong field approximation corrections, revealing a reversal in the dominance between recombination and rescattering contributions as the laser field strength varies from strong to weak.
This paper numerically demonstrates that strong-field ionization in the nondipole x-ray regime exhibits a quasiperiodic modulation of ionization yield driven by Coulomb-field-induced electron wave packet oscillations and unusual photon momentum sharing, effects predicted to be observable in upcoming x-ray free-electron laser facilities.
This paper reports the successful observation of two-photon-excited fluorescence in Rb and Rb atoms within a magneto-optical trap at extremely low excitation powers and photon fluxes, demonstrating that optically cooled rubidium is a promising platform for sensitive two-photon spectroscopy.
This paper presents theoretical calculations of energy levels, Landé -factors, and hyperfine-structure constants for singly ionized Xe, Rn, and Og atoms using a configuration-interaction method, validating the approach against Xe II experimental data to provide accurate predictions for the superheavy Rn II and Og II ions while highlighting the significant enhancement of Breit and quantum-electrodynamic corrections due to configuration mixing.
This paper presents *ab initio* CDW-EIS calculations of atomic ionization cross sections for a wide range of targets and projectiles (including bare ions and antiprotons), provides an openly accessible dataset with systematic trend analysis, and introduces a neural-network surrogate (CDWEIS-NN) to interpolate and extend these results for practical applications.
This paper demonstrates a method for calibrating a laser's frequency scan in Rydberg atom-based electrometry by utilizing Autler-Townes splitting and fitting peak separations to a two-level model, achieving accuracy comparable to known fine-structure separations without requiring an absolute frequency reference.
This study identifies local electric-field gradient variations caused by thorium dopant concentration as the dominant source of inhomogeneous linewidth broadening in solid-state Th:CaF nuclear clocks, providing a microscopic explanation for the observed spectral characteristics and guiding future material engineering to achieve sub-Hertz precision.