State-specific ion mobilities of Lr+ (Z = 103) in heliumIon mobilities of Lr+ (Z = 103) and of its lighter chemical homolog Lu+ (Z = 71) in helium were calculated for the ground state 1S0 and the lowest metastable state 3D1. To this end we applied…Harry Ramanantoanina, Anastasia Borschevsky, Michael Block et al.·Apr 11, 2023SaveLearn
Fine-structure transitions of Si and S induced by collisions with atomic hydrogenUsing a quantum-mechanical close-coupling method, we calculate cross sections for fine structure excitation and relaxation of Si and S atoms in collisions with atomic hydrogen. Rate coefficients are…Pei-Gen Yan, James F. Babb·Apr 5, 2023SaveLearn
Checking the reliability of opacity databasesMathematical inequalities, combined with atomic-physics sum rules, enable one to derive lower and upper bounds for the Rosseland and/or Planck mean opacities. The resulting constraints must be…Jean-Christophe Pain, Patricia Croset·Apr 5, 2023SaveLearn
Partial measurements of the total field gradient and the field gradient tensor using an atomic magnetic gradiometerMagnetic gradiometers have wide practical and academic applications, and two important types of field gradient observables are the total field gradient and field gradient tensor. However,…Qianqian Yu, Siqi Liu, Xueke Wang et al.·Apr 4, 2023SaveLearn
Generation of rotational ground state HD+ ions in an ion trap using a resonance-enhanced threshold photoionization processWe report a method for producing ultracold HD+ molecular ions populated in a rotational ground state in an ion trap based on [2+1'] resonance-enhanced threshold photoionization (RETPI) and…Yong Zhang, Qianyu Zhang, Wenli Bai et al.·Apr 4, 2023SaveLearn
Measurements of the Kr (e, 2e) differential cross section in the perpendicular plane, from 2 eV to 120 eV above the ionization thresholdNew (e, 2e) differential cross section measurements from krypton are presented in the perpendicular plane, where the incident electron beam is orthogonal to the scattered and ejected electrons that…Andrew James Murray, Joshua Rogers·Apr 3, 2023SaveLearn
A multichannel hyperspherical model for Efimov physics with van der Waals interactions controlled by a Feshbach resonanceHere we present a four-channel model that incorporates a magnetically tunable Feshbach resonance in a system of three atoms that interact via pairwise van der Waals interactions. Our method is…Kajsa-My Tempest, Svante Jonsell·Apr 3, 2023SaveLearn
A Long-Baseline Atom Interferometer at CERN: Conceptual Feasibility StudyWe present results from exploratory studies, supported by the Physics Beyond Colliders (PBC) Study Group, of the suitability of a CERN site and its infrastructure for hosting a vertical atom…G. Arduini, L. Badurina, K. Balazs et al.·Apr 2, 2023SaveLearn
Investigation of Optical Pumping in Cesium Atoms with a Radio-Frequency Field, Using Liouville EquationOptical pumping is a technique for engineering atomic-sublevel population of desired atoms. We investigate the population evolution of Cesium atoms by employing Liouville equation. For this purpose,…Hossein Davoodi Yeganeh, Zahra Shaterzadeh-Yazdi·Apr 1, 2023SaveLearn
Lamb dip of a Quadrupole Transition in H2The saturated absorption spectrum of the hyperfine-less S(0) quadrupole line in the (2-0) band of H2 is measured at λ=1189 nm, using the NICE-OHMS technique under cryogenic conditions…F. M. J. Cozijn, M. L. Diouf, W. Ubachs·Mar 31, 2023SaveLearn
Magnetic Jones Vector Detection with RF Atomic MagnetometersWe show, theoretically and experimentally, how the absolute orientation and polarization state of radio-frequency (RF) magnetic fields in a transverse 2D plane can be uniquely determined using two…Cicely Motamedi, Karen Sauer·Mar 31, 2023SaveLearn
Chemical reactions of ultracold alkaline-earth-metal diatomic moleculesWe study the energetics of chemical reactions between ultracold ground-state alkaline-earth-metal diatomic molecules. We show that the atom-exchange reactions forming homonuclear dimers are…Hela Ladjimi, Michał Tomza·Mar 30, 2023SaveLearn
Diatomic molecules of alkali-metal and alkaline-earth-metal atoms: interaction potentials, dipole moments, and polarizabilitiesUltracold diatomic molecules find application in quantum studies ranging from controlled chemistry and precision measurement physics to quantum many-body simulation and potentially quantum computing.…Hela Ladjimi, Michał Tomza·Mar 30, 2023SaveLearn
Prospects for optical clocks combining high sensitivity to new physics with insensitivity to perturbations; the case of Sb+, Au+, and Hg2+Our study is motivated by the prospect of several metastable states in the Sb + , Au + , and Hg 2+ ions being used as possible candidates for optical clocks. We calculate several…Saleh O. Allehabi, V. A. Dzuba, V. V. Flambaum·Mar 30, 2023SaveLearn
Angular distribution of photoelectrons generated in atomic ionization by twisted radiationUntil recently, theoretical and experimental studies of photoelectron angular distributions (PADs) including non-dipole effects in atomic photo\-ionization have been performed mainly for the…Maksim D. Kiselev, Elena V. Gryzlova, Alexei N. Grum-Grzhimailo·Mar 30, 2023SaveLearn
Robust Atom Optics for Bragg Atom InterferometryMulti-photon Bragg diffraction is a powerful method for fast, coherent momentum transfer of atom waves. However, laser noise, Doppler detunings, and cloud expansion limit its efficiency in large…Garrett Louie, Zilin Chen, Tejas Deshpande et al.·Mar 29, 2023SaveLearn
Radiative Decay Rate and Branching Fractions of MgFWe report measured and calculated values of radiative decay rates and vibrational branching fractions for the A2 state of MgF. The decay rate measurements use time-correlated single photon…Eric Norrgard, Yuly Chamorro, Catherine Cooksey et al.·Mar 28, 2023SaveLearn
[Transitional strength under plasma] Precise estimations of astrophysically relevant electromagnetic transitions of Ar7+, Kr7+, Xe7+, and Rn7+ under plasma atmosphereThe growing interest in atomic structures of moderately-stripped alkali-like ions in diagnostic study and modeling of astrophysical and laboratory plasma makes an accurate many-body study of atomic…Swapan Biswas, Anal Bhowmik, Arghya Das et al.·Mar 28, 2023SaveLearn
An association sequence suitable for producing ground-state RbCs molecules in optical latticesWe identify a route for the production of 87Rb133Cs molecules in the X \, 1+ rovibronic ground state that is compatible with efficient mixing of the atoms in optical…Arpita Das, Philip D. Gregory, Tetsu Takekoshi et al.·Mar 28, 2023SaveLearn
Charge Migration in Heterocyclic Five-Membered RingsThis contribution presents numerical simulations of N-electron dynamics in heterocyclic five-membered ring molecules to shed light on the effect of molecular symmetry on charge migration.…Sucharita Giri, Gopal Dixit, Jean Christophe Tremblay·Mar 28, 2023SaveLearn
Experimental determination of the energy dependence of the rate of the muon transfer reaction from muonic hydrogen to oxygen for collision energies up to 0.1 eVWe report the first experimental determination of the collision-energy dependence of the muon transfer rate from the ground state of muonic hydrogen to oxygen at near-thermal energies. A sharp…M. Stoilov, A. Adamczak, D. Bakalov et al.·Mar 27, 2023SaveLearn
Charge transfer of polyatomic molecules in ion-atom hybrid traps: Stereodynamics in the millikelvin regimeRate constants for the charge transfer reaction between N2H+ and Rb in the mK regime are measured in an ion-atom hybrid trap and are found to be lower than the Langevin capture limit.…Alexandre Voute, Alexander Dörfler, Laurent Wiesenfeld et al.·Mar 27, 2023SaveLearn
Femtosecond pulse parameter estimation from photoelectron momenta using machine learningDeep learning models have provided huge interpretation power for image-like data. Specifically, convolutional neural networks (CNNs) have demonstrated incredible acuity for tasks such as feature…Tomasz Szołdra, Marcelo F. Ciappina, Nicholas Werby et al.·Mar 24, 2023SaveLearn
Reduction of helium permeation in microfabricated cells using aluminosilicate glass substrates and Al2O3 coatingsThe stability and accuracy of atomic devices can be degraded by the evolution of their cell inner atmosphere. Hence, the undesired entrance or leakage of background or buffer gas, respectively, that…C. Carlé, S. Keshavarzi, A. Mursa et al.·Mar 24, 2023SaveLearn
Active stabilization of kilogauss magnetic fields to the ppm level for magnetoassociation on ultranarrow Feshbach resonancesFeshbach association of ultracold molecules using narrow resonances requires exquisite control of the applied magnetic field. Here we present a magnetic field control system to deliver magnetic…Mateusz Borkowski, Lukas Reichsöllner, Premjith Thekkeppatt et al.·Mar 23, 2023SaveLearn