593 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 a fast, large-scale optimal transport algorithm for holographic beam shaping that overcomes the memory and time limitations of existing methods by leveraging the dual formulation and separable cost structure to achieve memory and near-linear time complexity, enabling the solution of megapixel-scale problems in seconds.
This paper demonstrates that in time-resolved electron momentum spectroscopy using ultrashort electron pulses, the finite transverse extent of the wave packet restricts target momentum probing to a confined spatial region via a Gabor transform, while vacuum dispersion further influences the measurement through spatial broadening during propagation.
This paper develops a self-consistent theoretical framework describing Rydberg electrons orbiting polarizable liquid cores, such as superfluid helium droplets, which breaks angular momentum degeneracy and offers a method to probe droplet properties like crystallization through stimulated electron transitions.
This study refutes the self-seeding hypothesis for ultraviolet N lasing by demonstrating that both radially and azimuthally polarized lasing can be generated with comparable intensities despite the absence of azimuthally polarized second harmonics, thereby confirming that amplified spontaneous emission synchronized with the pump is the underlying mechanism.
This paper reports the experimental realization of a large-area, multi-loop, and multi-axis atomtronic Sagnac interferometer using Bose-Einstein condensates in an optical waveguide, achieving a record enclosed area of 8.7 mm² and demonstrating high-contrast rotation sensing capabilities across multiple arbitrary axes.
This paper presents the theoretical development of a multiresonator quantum memory using atomic ensembles, analyzing its physical properties and optimal implementation conditions while highlighting its advantages for integrated optical schemes.
This paper examines the onset of Bose-Einstein condensation across systems with various densities of states by reconciling the high-energy-dependent results of Chatterjee and Diaconis with the standard physics approach, which determines condensation based on low-energy spectral behavior.
By leveraging the unique sensitivity of the low-energy nuclear isomeric transition in Th, researchers at JILA conducted a precision spectroscopy search that established the world's strongest bounds on ultralight dark matter in the to eV mass range, probing interaction scales exceeding a million times the Planck scale.
This paper presents all-orders calculations incorporating the Breit interaction for moderately charged Cs and Fr ions, revealing that while these corrections significantly improve fine-structure intervals and are substantial for f states, they do not fully resolve existing discrepancies with experimental energy levels.
This study combines experimental measurements and theoretical CAP/EOM-EA-CCSD calculations to demonstrate that the formation of hydroxyl anions from 2-propanol via dissociative electron attachment is driven by a specific two-particle-one-hole core-excited Feshbach resonance at 8.2 eV that promotes efficient C-OH bond cleavage.