630 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.
The paper introduces the BiP-PRISM algorithm, which utilizes beam partitioning and natural-neighbor interpolation to significantly reduce the computational and memory costs of quantitative STEM-EELS simulations, enabling high-accuracy, full-resolution elemental mapping on consumer-grade GPUs.
Using an electron beam ion trap and synchrotron radiation, researchers achieved parts-per-million accuracy in determining the K photoionization resonance energy of Be-like oxygen and resolved its small isotopic shift, providing critical data to refine astrophysical diagnostics and test advanced quantum electrodynamic calculations.
This paper demonstrates that deep reinforcement learning can effectively cool the motion of a single neutral atom in an optical cavity using only cavity transmission data, achieving faster cooling speeds than standard linear controllers while adapting to experimental uncertainties.
This paper reports the first experimental measurement of the saturation intensity for the 420 nm rubidium transition, identifies the optimal operating temperature for maximizing signal-to-noise ratio in a warm-vapor cell, and provides precise hyperfine constants for the 6P state, all of which are critical for developing portable all-optical atomic clocks.
This paper numerically demonstrates that the interplay between channel-closing and bound-bound transition resonances in xenon atoms under moderate-intensity laser fields creates a Fano-type resonance structure characterized by a pronounced efficiency dip at the intersection point and shifted regions of enhanced harmonic generation, offering a controllable mechanism for efficient XUV pulse production.
This paper presents a detailed supplement to the Teachspin Diode Laser Spectroscopy user manual, offering instructors a comprehensive guide with specific examples of measurements and data analysis to facilitate the implementation of rubidium atomic spectroscopy experiments in physics teaching labs.
This paper reports the first demonstration of a cesium-based laser-atomic oscillator (Cs-LAO) that functions as a self-oscillating atomic clock and earth-field magnetometer with short-term frequency instability around and magnetic sensitivity near 100 fT/, paving the way for truly chip-scale atomic devices.
This paper demonstrates the deterministic preparation of arbitrary two-component product states of fermionic Li atoms in an 88 optical tweezer array with over 98.5% motional ground-state fidelity, establishing a fast, scalable, and programmable architecture for low-entropy fermionic quantum simulation.
This paper reviews recent experimental and theoretical advances in understanding dineutron clusters within neutron-rich nuclei, highlighting evidence from halo nuclei and unbound systems, the role of few-body theories in interpreting decay processes, and the potential connection to four-neutron clusters and universal few-body physics.
This paper introduces STEMGym, a benchmark demonstrating that in autonomous scanning transmission electron microscopy, optimizing the perception pipeline yields significantly greater dose efficiency than employing advanced adaptive navigation strategies, thereby reframing where machine learning efforts should be prioritized.