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 paper analytically computes electron-Rydberg atom ionization cross sections for Cesium using quantum mechanical potential scattering, demonstrating that the observed rapid increase in ionization above a specific Rydberg state is driven by the relationship between the scattering length and the orbital radius, with results closely matching experimental data.
This paper theoretically solves the problem of competing instabilities in an ultracold Fermi gas coupled to a single-wave-vector cavity mode, revealing that while attractive interactions drive a density-wave instability, repulsive interactions favor non-superradiant superfluid phases and universally deform the Fermi surface, with these phenomena being accessible to current experimental setups.
This paper presents a comprehensive survey and benchmark of nearly sixty pulse shape discrimination algorithms, demonstrating through standardized evaluation on two datasets that deep learning models often outperform traditional methods while providing an open-source toolbox to advance reproducibility in radiation detection research.
This paper demonstrates a breakthrough in microwave electrometry using individual Rydberg atoms in an optical tweezer array, achieving quantum-limited sensitivity, ultra-fast nanosecond response times, and sub-micrometer spatial resolution that collectively surpass the fundamental constraints of classical antenna-based sensing.
This paper introduces an unsupervised physics-informed neural network with a specialized window parametrization strategy to robustly solve saddle-point equations for strong-field ionization across tailored laser fields, offering a stable alternative to conventional solvers for computing photoelectron momentum distributions and enabling systematic exploration of complex semiclassical regimes.
This paper extends previous bounds on the axion-photon coupling by over an order of magnitude using the SACLA X-ray free electron laser and the Borrmann effect in Laue crystals, achieving the most stringent laboratory constraints to date for QCD axions in the 3.46–3.48 keV mass range.
This paper presents a scalable, monolithic 3D fused silica blade ion trap that successfully combines high optical access and low motional heating rates with stable high-voltage operation for heavy ions, achieving a two-qubit gate fidelity exceeding 99% and establishing a robust platform for advanced quantum technologies.
This paper experimentally demonstrates the realization of a synthetic monopole in an ultracold spin-1 ensemble, where tunable spin-tensor coupling is used to engineer field anisotropy, directly measure the topological Chern number, and observe a topological phase transition.
This paper demonstrates a scalable optical tweezer platform using holographic metasurfaces to trap over 1,000 single strontium atoms in arbitrary 2D geometries with high uniformity, achieving a record 360,000 traps to enable large-scale quantum applications.
This paper demonstrates a robust, high-flux strontium source capable of producing quasi-continuous sub-microkelvin samples without a high-finesse cavity-stabilized laser, utilizing instead a dispersion-optimized fiber frequency comb referenced to either a metrology-grade RF signal or a tunable source stabilized by a magneto-optical trap.