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 experimentally and theoretically confirms the existence of a long-lived (approximately 100 ns) auto-detaching metastable state of the O ion, specifically the (2p3s)S state, which has significant implications for modeling oxygen-containing systems.
This study utilizes archival GPS carrier phase data to conduct a retrospective search for exotic low-mass fields emitted by the GW170817 binary neutron star merger, finding no significant signal but establishing new 95% confidence-level constraints on the interaction energy scale of quadratic couplings that improve upon existing astrophysical limits.
This paper presents a method for preparing molecular ions in single rovibronic states using mass-analyzed threshold ionization (MATI) combined with pulsed-field ionization and a dc quadrupole bender to eliminate unwanted states, thereby optimizing their phase-space properties for injection into radio-frequency traps for precision measurements.
This paper presents measurements of electron-detachment cross sections for O + N collisions using two techniques, resolving previous discrepancies through the hypothesis of metastable auto-detaching states and analyzing the velocity threshold behavior within a free-collision model framework.
This paper revises the parametric Hamiltonian for trivalent lanthanide ions by introducing orthogonal operators and new parameter sets for LaF and LiYF to resolve historical discrepancies, while providing open-source code (`qlanth`) and calculated transition rates to ensure replicability and serve as a reference for future spectroscopic studies.
This paper presents the design and performance of a cryogenic buffer gas beam source featuring an in-situ ablation target replacement system that maintains vacuum and cryogenic conditions, thereby achieving a 40% long-term yield improvement for the ACME III electron electric dipole moment search while producing cold thorium monoxide molecules with parameters comparable to traditional sources.
This paper introduces a cavity array microscope that utilizes a novel free-space geometry with intra-cavity lenses to enable strong, parallel coupling between individual atoms and over 40 (and up to 500) distinct cavity modes, thereby overcoming previous scalability limitations to facilitate fast, non-destructive readout and large-scale quantum networking without requiring nanophotonic elements.
This paper proposes and theoretically models two schemes for detecting low-power twisted radiowaves using Rydberg atoms, one based on nondipole transitions induced by twisted photons and the other utilizing an antenna array to measure constituent plane waves.
This paper highlights how the high-precision measurements of electron and muon magnetic moments serve as critical tests of the Standard Model and quantum field theory, with the electron offering the most stringent validation of current theories and the muon providing a sensitive probe for discovering new physics beyond the Standard Model.
This paper applies a tractable -matrix model to investigate the nuclear reaction processes, fusion rates, and sticking probabilities of the muonic molecule, specifically analyzing -wave fusion channels and charge symmetry violations in light of recently reported discrepancies in -wave astrophysical factors.