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.
The paper introduces atomSmltr, a modular Python package designed to simulate laser cooling in complex magnetic and laser beam geometries, featuring a flexible architecture for constructing experimental setups and validated through benchmarks against standard textbook cases.
This study demonstrates a scalable analog quantum simulation of the Dicke model using a two-dimensional crystal of approximately 100 trapped ions to experimentally observe key non-equilibrium phenomena, including dynamical phase transitions, chaotic dynamics, entanglement growth, and spin-phonon squeezing with revivals.
This paper derives exact closed-form expressions for spin wave functions under specific magnetic fields to enable controlled transitions for quantum computing and to facilitate precise measurements of nuclear moments in atoms and molecules, offering a solution to resolve inconsistencies in existing hyperfine data for isotopes like 133Cs.
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 Bayesian inference on data from the Chang'e-6 lander's NILS instrument, this study presents a novel semi-analytical model that quantifies the scattering and sputtering of solar wind ions on the lunar surface, revealing specific probabilities for negative ion emission, surface roughness effects on angular distributions, and a surface binding energy of 5.5 eV.
This paper demonstrates the production of an ultra-cold gas of 25,000 rubidium atoms below 100 nK in microgravity using time-averaged optical dipole traps during parabolic flights, overcoming previous limitations of atom chips and paving the way for advanced quantum sensors and fundamental physics research in space.
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 review provides a pedagogical overview of trapped-ion systems, detailing their fundamental physics and control mechanisms while highlighting their emerging capabilities in simulating chemical dynamics and outlining future challenges in scaling quantum architectures.
This paper presents comprehensive experimental measurements of rubidium diffusion coefficients in various inert and nitrogen buffer gases using coherent scattering from optically pumped population gratings, validating the results against quantum theoretical models and highlighting their relevance for optimizing magnetometers, spin-polarized gas imaging, and pressure sensors.
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.