728 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 presents an overview of recent advancements in scalable chip-based 3D ion traps, detailing developments in chip materials, on-chip electronic integration, compact vacuum connections, and the simulation-guided incorporation of micro-optics without disrupting trapped ions.
This paper resolves the hyperfine puzzle by demonstrating that a minimax variational calculation based on the exact Dirac equation suppresses the effective magnetic moments of fermions at small radii, thereby preventing atomic collapse and ensuring the stability of hydrogen, positronium, and other two-fermion Coulombic systems.
This paper investigates the intensity stability of a continuous superradiant laser architecture proposed for active optical clocks, deriving an analytical criterion for the onset of chaotic behavior when cavity photon lifetimes are significantly shorter than atomic lifetimes, while also highlighting its potential as a platform for studying turbulence-like chaos and identifying a regular self-pulsing regime at large atom numbers.
This paper demonstrates through theoretical calculations that the conveyor-belt magneto-optical trap (CB-MOT) mechanism, which enables efficient direct loading of heavy molecules like BaF, remains effective for other isotopes and species with complex hyperfine structures or limited radiative forces, thereby offering a robust alternative to conventional MOTs for a broader range of laser-coolable molecules.
This paper reports the full systematic evaluation of an Al single-ion optical clock achieving a fractional frequency uncertainty of , alongside precise measurements of its absolute frequency and its ratio to a Sr optical lattice clock, which show a significant deviation from previous BACON collaboration results and support the ongoing redefinition of the second.
This paper reports the realization of a quantum-degenerate Bose-Bose mixture of dysprosium isotopes (162Dy and 164Dy) with efficient thermalization and tunable interspecies interactions via a Feshbach resonance, enabling the exploration of a miscible-immiscible transition and dipolar effects such as multi-component supersolidity.
This study employs a density functional approach with the generalized pseudospectral method to investigate the energies and information-theoretic measures of few-electron systems under a spherically symmetric Gaussian potential, revealing how variations in potential width and depth influence electron correlation, density localization, and the behavior of specific exchange-correlation functionals.
This paper investigates the bound and scattering properties of two-atom-one-ion systems near a Feshbach resonance, revealing that long-range ionic interactions significantly deviate from universal neutral-atom behavior by suppressing inelastic recombination rates and extending the lifetimes of Efimov states and triatomic molecular ions.
This study identifies micron-sized particles near the electrodes of a surface Paul trap as the source of electric field noise, demonstrating that modeling these particles as lossy dielectrics explains the observed noise magnitude, spatial variation, and frequency dependence.
The paper introduces atomSmltr, a modular Python package designed to simulate laser cooling in complex magnetic and laser beam geometries, featuring a flexible architecture for constructing experimental setups and validated through benchmarks against standard textbook cases.