Two-photon exchange corrections to the g factor of Li-like ionsWe report calculations of QED corrections to the g factor of Li-like ions induced by the exchange of two virtual photons between the electrons. The calculations are performed within QED theory to…V. A. Yerokhin, C. H. Keitel, Z. Harman·Jun 15, 2021SaveLearn
Scattering of two particles in a 1D latticeThis study concerns the two-body scattering of particles in a one-dimensional periodic potential. A convenient ansatz allows for the separation of center-of-mass and relative motion, leading to a…Seth T. Rittenhouse, P. Giannakeas, Nirav P. Mehta·Jun 14, 2021SaveLearn
Single Atoms with 6000-Second Trapping Lifetimes in Optical-Tweezer Arrays at Cryogenic TemperaturesWe report on the trapping of single Rb atoms in tunable arrays of optical tweezers in a cryogenic environment at 4 K. We describe the design and construction of the experimental apparatus,…Kai-Niklas Schymik, Sara Pancaldi, Florence Nogrette et al.·Jun 14, 2021SaveLearn
Understanding the L-shell ionization mechanism through osmium atoms bombarded by 4-6 MeV/u fluorine ionsThe L-subshell ionization mechanism is studied in an ultra-thin osmium target bombarded by 4-6 MeV/u fluorine ions. Multiple ionization effects in the collisions are considered through the change of…Soumya Chatterjee, Sunil Kumar, Sarvesh Kumar et al.·Jun 13, 2021SaveLearn
Angular part of trial wavefunction for solving helium Schr\"odinger equationIn this article, the form of basis set for solving helium Schr\"odinger equation is reinvestigated in perspective of geometry. With the help of theorem proved by Gu et~al., we construct a…Sanjiang Yang·Jun 13, 2021SaveLearn
High-resolution Laboratory Measurements of K-shell X-ray Line Polarization and Excitation Cross Sections in Heliumlike S XV IonsWe report measurements of electron-impact excitation cross sections for the strong K-shell n=2-1 transitions in S XV using the LLNL EBIT-I electron beam ion trap, two crystal spectrometers, and the…Chintan Shah, Natalie Hell, Antonia Hubbard et al.·Jun 11, 2021SaveLearn
Interactions of Ions and Ultracold Neutral Atom Ensembles in Composite Optical Dipole Traps: Developments and PerspectivesIon-atom interactions are a comparatively recent field of research that has drawn considerable attention due to its applications in areas including quantum chemistry and quantum simulations. In first…Leon Karpa·Jun 11, 2021SaveLearn
Recollision of excited electron in below-threshold nonsequential double ionizationConsensus has been reached that recollision, as the most important post-tunneling process, is responsible for nonsequential double ionization process in intense infrared laser field, however, its…Xiaolei Hao, Yuxing Bai, Chan Li et al.·Jun 11, 2021SaveLearn
Defect-free arbitrary-geometry assembly of mixed-species atom arraysOptically trapped mixed-species single atom arrays with arbitrary geometries are an attractive and promising platform for various applications, because tunable quantum systems with multiple…Cheng Sheng, Jiayi Hou, Xiaodong He et al.·Jun 11, 2021SaveLearn
The atomic ionization, capture, and stopping cross sections by multicharged ions satisfy the Benford lawThe applicability of the Benford law for different data sets of atomic cross sections by ion impact is studied. We find that the data sets corresponding to theoretical ionization and capture cross…J. E. Miraglia, M. S. Gravielle·Jun 11, 2021SaveLearn
A modular optically pumped magnetometer systemTo address the demands in healthcare and industrial settings for spatially resolved magnetic imaging, we present a modular optically pumped magnetometer (OPM) system comprising a multi-sensor array…Thomas Coussens, Aikaterini Gialopsou, Christopher Abel et al.·Jun 10, 2021SaveLearn
Polarization in Strong-Field Ionization of Excited HeliumWe analyze how bound-state excitation, electron exchange and the residual binding potential influence above-threshold ionization (ATI) in Helium prepared in an excited p state, oriented parallel…A. C. Bray, A. S. Maxwell, Y. Kissin et al.·Jun 10, 2021SaveLearn
Variational truncated Wigner approximation for weakly interacting Bose fields: Dynamics of coupled condensatesThe truncated Wigner approximation is an established approach that describes the dynamics of weakly interacting Bose gases beyond the mean-field level. Although it allows a quantum field to be…Christopher D. Mink, Axel Pelster, Jens Benary et al.·Jun 9, 2021SaveLearn
K-shell ionization cross sections of Cu, Zn and Ge by 3-5 MeV/U Si-ion bombardmentThe K x-ray spectra of different targets (Cu, Zn, and Ge) induced by 3 to 5 MeV/u Si projectile ions have been measured to determine the K-shell ionization cross-section. A significant difference is…Shashank Singh, Mumtaz Oswal, Sunil Kumar et al.·Jun 9, 2021SaveLearn
Comprehensive Laboratory Measurements Resolving the LMM Dielectronic Recombination Satellite Lines in Ne-like Fe XVII IonsWe investigated experimentally and theoretically dielectronic recombination (DR) populating doubly excited configurations 3l3l' (LMM) in Fe XVII, the strongest channel for soft X-ray line formation…Filipe Grilo, Chintan Shah, Steffen K"uhn et al.·Jun 9, 2021SaveLearn
Electromagnetic induction imaging with a scanning radio-frequency atomic magnetometerWe demonstrate electromagnetic induction imaging with an unshielded, portable radio-frequency atomic magnetometer scanning over the target object. This configuration satisfies standard requirements…Cameron Deans, Yuval Cohen, Han Yao et al.·Jun 8, 2021SaveLearn
Relativistic Fock space coupled cluster study of bismuth electronic structure to extract the Bi nuclear quadrupole momentWe report the value of the electric quadrupole moment of 209Bi extracted from the atomic data. For this, we performed electronic structure calculations for the ground 4So3/2 and excited…L. V. Skripnikov, A. V. Oleynichenko, A. V. Zaitsevskii et al.·Jun 8, 2021SaveLearn
Positron elastic scattering by a semifilled-shell atomWe theoretically study the positron elastic scattering by an atom with a multielectron semifilled subshell in its structure. The positron scattering by the Mn(...3d54s2,6S) atom with a…M. Ya. Amusia, V. K. Dolmatov, L. V. Chernysheva·Jun 7, 2021SaveLearn
A flexible control system for atomic, molecular and optical physics experimentsWe have implemented a control system for experiments in atomic, molecular and optical physics based on a commercial low-cost board, featuring a field-programmable gate array as part of a…Andreas Trenkwalder, Matteo Zaccanti, Nicola Poli·Jun 5, 2021SaveLearn
Measurement of DC and AC electric fields inside an atomic vapor cell with wall-integrated electrodesWe present and characterize an atomic vapor cell with silicon ring electrodes directly embedded between borosilicate glass tubes. The cell is assembled with an anodic bonding method and is filled…Lu Ma, Michael A. Viray, David A. Anderson et al.·Jun 3, 2021SaveLearn
Resonant and first-order dipolar interactions between ultracold molecules in static and microwave electric fieldsWe theoretically study collisions between ultracold polar molecules that are polarized by microwave or static electric fields. We systematically study the dependence on field strength, microwave…Tijs Karman, Zoe Z. Yan, Martin Zwierlein·Jun 3, 2021SaveLearn
Two-dimensional three-body quadrupole-quadrupole interactionsSimilar to interactions between dipoles, or van der Waals interactions, quadrupole-quadrupole interactions are interactions between quadrupoles. In this article, we study the quadrupole interactions…Jianing Han·Jun 2, 2021SaveLearn
Polarization Enhanced Deep Optical Dipole Trapping of -cooled Polar MoleculesWe demonstrate loading of SrF molecules into an optical dipole trap (ODT) via in-trap -cooling. We find that this cooling can be optimized by a proper choice of relative ODT and …Thomas K. Langin, Varun Jorapur, Yuqi Zhu et al.·Jun 1, 2021SaveLearn
Table-top interferometry on extreme time and wavelength scalesHigh-resolution Fourier-transform spectroscopy using table-top sources in the extreme ultraviolet (XUV) spectral range is still in its infancy. In this contribution a significant advance is presented…S. Skruszewicz, A. Przystawik, D. Schwickert et al.·Jun 1, 2021SaveLearn
Optical excitation of ultra-relativistic partially stripped ionsThe Gamma Factory (GF) initiative aims at the construction of a unique experimental tool exploiting resonant interaction of light with ultra-relativistic partially stripped ions (PSI) stored in…J. Bieroń, M. W. Krasny, W. Płaczek et al.·Jun 1, 2021SaveLearn