578 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 study reveals that confined, two-dimensional quantum droplets in attractive binary Bose mixtures exhibit unique "heterosymmetric" states with distinct vorticities in their components near half-integer angular momenta, a phenomenon that is missed by single-order-parameter models but captured by a two-component approach incorporating beyond-mean-field effects.
This paper introduces AMELI, a Python package that utilizes exact arithmetic and a direct Slater determinant approach to efficiently generate universally applicable, high-precision angular matrix elements for lanthanide ions, thereby simplifying the analysis of their radiative spectra for experimentalists.
This paper presents a state-of-the-art theoretical framework combining -expansion and all-order formalism to compute bound-state energies in medium-mass muonic atoms () with improved QED and nuclear polarization corrections, aiming to support high-precision extraction of nuclear charge radii from modern spectroscopy experiments.
This paper presents a modular, standalone electronic system using off-the-shelf components to lock narrow-linewidth lasers to a primary reference with high precision, large capture range, and fast response, enabling high-resolution spectroscopy of cold atoms without requiring a dedicated clock reference.
This paper introduces a modified Lu-Fano plot that overcomes the limitations of the traditional method by accommodating more than two ionization thresholds and better handling closely split thresholds, as demonstrated through its application to manganese Rydberg spectra.
This study experimentally demonstrates that degenerate quasi-one-dimensional attractive Bose gases, when quenched from repulsive to unstable attractive interactions, exhibit long-range phase-coherent density waves distinct from soliton trains, which can spontaneously re-establish quasi-long-range coherence upon returning to the repulsive regime through the nucleation and annihilation of density defects.
The TUCAN collaboration reports significant progress in commissioning its high-intensity accelerator-driven ultracold neutron source and developing the associated spectrometer, achieving the first UCN production in 2024 and setting the stage for a neutron EDM experiment with a sensitivity goal of and two orders of magnitude improved statistics.
This study utilizes real-time fluorescence imaging of deformed 3D trapped-ion clusters to characterize octupolar structural transitions, revealing distinct dynamical signatures such as Higgs-like mode softening, hysteresis, and stochastic switching that establish these systems as versatile platforms for investigating symmetry-breaking and complex reaction kinetics.
This paper proposes and validates a perturbative spin-echo-inspired gate protocol combined with a phase-error cancellation circuit to suppress laser-induced crosstalk in neutral atom quantum computers, thereby improving controlled-Z gate fidelity by two orders of magnitude.
This paper presents a comprehensive benchmarking study of single-qubit gates on a neutral atom quantum processor using Direct Randomized Benchmarking and Gate Set Tomography, achieving an average fidelity of 99.963% and introducing a novel gauge optimization procedure on the Stiefel manifold to ensure physically consistent and comparable results.