587 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 review presents a unified theoretical approach linking resonant photoionization cross-sections to photoemission time delays via the analytic properties of ionization amplitudes, illustrating the method across various resonance types and extending the analysis to two-photon resonant processes and autoionizing state lifetimes measured through laser-assisted interferometric techniques.
This chapter explores how planetary nebulae, formed by mass ejection from dying low-to-intermediate mass stars, serve as invaluable laboratories for studying astrophysics, astrochemistry, and astromineralogy.
This paper presents a validated first-principles Monte Carlo simulation of light-mediated dynamics in tweezer-trapped erbium atoms, which is used to optimize single-atom preparation by evaluating the efficiency and fidelity of different light-assisted collision transitions.
This paper introduces circular under-threshold RABBITT (cuRABBITT), a novel interferometric technique that utilizes circularly polarized attosecond pulses and rainbow spectral analysis to continuously map bound-state resonances and extend Fano's propensity rule into the under-threshold regime for atoms like helium, argon, and xenon.
This study demonstrates that while moderate on-site disorder in a photonic lattice preserves the robustness of giant-atom population decay and global photon transport, it significantly enhances non-Markovian memory by reshaping bound-state features and promoting information backflow, thereby establishing a disorder-aware framework for engineering coherent feedback effects.
This study presents the first *ab initio* calculation of the nuclear Schiff moment for the F isotope using the no-core shell model, which, when combined with quantum chemistry calculations and experimental data on HfF, establishes the first experimental bound on this moment and its associated pion-nucleon-nucleon coupling constants.
This paper extends the established link between photoionization cross sections and attosecond time delays near Cooper minima from noble gases to alkali and alkaline-earth metal atoms, demonstrating that a fully relativistic formalism is required to resolve the distinct, oppositely winding phase variations of the and ionization channels that vanish in nonrelativistic treatments.
This study demonstrates the feasibility of spin-cat qubits in an optical tweezer array using by achieving high-fidelity SU(2) rotations and experimentally verifying a significant noise bias toward dephasing errors, thereby validating their potential for hardware-efficient, bias-tailored quantum error correction.
This paper reports the first magneto-optical trapping of the fermionic titanium isotopes Ti and Ti by determining their hyperfine structures and isotope shifts through combined theoretical and spectroscopic analysis, which enabled the successful loading of atomic traps directly from a sublimation pump.
This paper demonstrates a dual ladder Rydberg receiver capable of simultaneously detecting, demodulating, and determining the angle of arrival of communication signals via RF-homodyne techniques, offering advantages in symbol rate over conventional heterodyne mixers while exhibiting comparable performance once low-frequency noise is accounted for.