566 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 estimates the accumulated rotational excitation and cooling times for diatomic molecular ions sympathetically cooled by laser-cooled atomic ions in two experimental scenarios, highlighting the trade-off between translational cooling and the preservation of internal quantum state purity.
This paper analyzes the rovibrational spectrum of hydrogen and antihydrogen molecular ions within a low-energy effective theory to demonstrate that these systems offer enhanced sensitivity to Lorentz and CPT violation in the proton sector—scaling as compared to atomic transitions—thereby providing a promising avenue for high-precision tests of fundamental symmetries.
This paper extends a previous analysis of Lorentz and CPT violation in hydrogen and antihydrogen molecular ions by incorporating spin-dependent operators to derive constraints on symmetry-violating couplings from the full hyperfine-Zeeman spectrum under an applied magnetic field.
This paper analyzes the general properties and symmetry-breaking characteristics of a two-sideband RABBITT scheme enabled by free-electron lasers and parity mixing, demonstrating its distinct angular distribution features compared to traditional methods and its potential for reconstructing pulse temporal profiles.
This paper presents a comprehensive derivation of the rovibrational spectrum for hydrogen and antihydrogen molecular ions within the non-minimal Standard-Model Extension, demonstrating how high-precision spectroscopy of these systems can test Lorentz and CPT symmetry with sensitivities up to by analyzing quantum number dependencies and temporal variations.
This chapter explains the origins and significance of the proton radius puzzle, which arose from a discrepancy between muonic and electronic hydrogen measurements suggesting a potential violation of lepton universality, and presents recent experimental results that have successfully resolved the issue.
This paper demonstrates the first observation of ground-state optically detected magnetic resonance (ODMR) in nitrogen-vacancy centers in diamond at room temperature using two-photon excitation with a 1040 nm femtosecond laser, establishing a promising method for fast 3D quantum sensing and imaging.
This paper establishes spectral design principles for enhancing local-excitation retention in impurity-assisted atomic arrays by utilizing biorthogonal eigenmode decomposition to reveal that survival dynamics depend on both eigenmode decay rates and initial-state overlaps, leading to a surrogate objective that successfully guides the inverse design of nontrivial aperiodic atomic configurations.
This paper proposes singly-ionized yttrium () as a promising platform for large-scale quantum computing by combining experimental spectroscopy and theoretical calculations to demonstrate its unique ability to support both field-insensitive qubit storage and spectrally isolated operations.
This paper reports the experimental measurement of a novel "turquoise" magic wavelength at 497.4363(3) nm for the Sr clock transition, which enables deeper optical traps with less power and offers enhanced sensitivity compared to the conventional 813 nm wavelength.