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.
This paper utilizes Finite Element Method (FEM) to analyze the mechanical and thermal stability of a 7.5 cm dual-axis cubic optical cavity, demonstrating its suitability as a robust, transportable reference for next-generation all-optical atomic clocks in terrestrial and space applications.
Using photoelectron-photoion coincidence momentum imaging in phase-locked intense laser fields, researchers demonstrated that electron recollisional excitation drives the dissociative ionization of OCS, evidenced by distinct energy-dependent asymmetry flips in electron emission for OCS and S channels that correspond to the parent ion's excitation energy.
This paper demonstrates that atoms arranged in chiral geometries can exhibit a strong collective chiroptical response mediated entirely by electric-dipole interactions at subwavelength separations, a phenomenon driven by the formation of subradiant collective modes.
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 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 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.
This paper presents classical and quantum simulations of an S-band RF photoinjector at the Joint Institute for Nuclear Research, demonstrating that the system can produce high-quality electron beams with low emittance and effectively preserve the orbital angular momentum of Laguerre-Gaussian wave packets during multi-MeV acceleration, thereby validating its suitability for future studies of relativistic vortex electrons.
This paper presents highly accurate theoretical predictions for the 5f_5/2 - 6p_1/2 clock transition energy in Cf17+ using a relativistic coupled-cluster framework that incorporates iterative triple excitations and quantum-electrodynamic corrections, thereby enabling the experimental realization of a highly charged ion optical clock.
This paper presents a sub-part-per-trillion precision measurement of the 2S-6P transition in atomic hydrogen that resolves discrepancies in the proton charge radius by confirming the muonic hydrogen value and validates the Standard Model and bound-state QED corrections to unprecedented levels of accuracy.