Data-Driven Energy Levels Calculation of Neutral Ytterbium (Z = 70)In view of the difficulty in calculating the atomic structure parameters of high-Z elements, the HFR (Hartree-Fock with relativistic corrections) theory in combination with the ridge regression…Yushu Yu, Chen Yang, Gang Jiang·Jul 9, 2022SaveLearn
Intensities of KCs E(4)1+ (a3+,X1+) band system up to dissociation threshold: an interplay between spin-orbit, hyperfine and rovibronic coupling effectsThe relative intensity distribution in the rotationally resolved laser-induced fluorescence spectra belonging to the E(4)1+ (a3+1,X1+) band systems of the KCs molecule…I. Klincare, M. Tamanis, R. Ferber et al.·Jul 7, 2022SaveLearn
Saturated absorption technique used in Potassium microcell for magnetic field sensingIt is demonstrated that the use of a Micrometric Thin 39K vapor Cell (MTC) and Saturated Absorption spectroscopy (SA) allows to form narrow atomic lines in transmission spectrum without unwanted…Armen Sargsyan, Rodolphe Momier, Claude Leroy et al.·Jul 6, 2022SaveLearn
Study of excited electronic states of the 39KCs molecule correlated with the K(42S)+Cs(52D) asymptote: experiment and theoryUsing the polarisation labelling spectroscopy, we performed the detailed analysis of the level structure of excited electronic states of the 39KCs molecule in the excitation energy interval…Jacek Szczepkowski, Anna Grochola, Wlodzimierz Jastrzebski et al.·Jul 6, 2022SaveLearn
Towards Learning Self-Organized Criticality of Rydberg Atoms using Graph Neural NetworksSelf-Organized Criticality (SOC) is a ubiquitous dynamical phenomenon believed to be responsible for the emergence of universal scale-invariant behavior in many, seemingly unrelated systems, such as…Simon Ohler, Daniel Brady, Winfried Lötzsch et al.·Jul 5, 2022SaveLearn
Triatomic Photoassociation in an Ultracold Atom-Molecule CollisionUltracold collisions of neutral atoms and molecules have been of great interest since experimental advances enabled the cooling and trapping of such species. This study is a theoretical investigation…Ahmed A. Elkamshishy, Chris H. Greene·Jul 5, 2022SaveLearn
Six-wave mixing of optical and microwave fields using Rydberg excitations in thermal atomic vaporRydberg EIT-based microwave sensing has limited microwave-to-optical conversion bandwidth due to fundamental limitation in the optical pumping rate to its dark state. We demonstrate a parametric…Tanim Firdoshi, Sujit Garain, Suman Mondal et al.·Jul 5, 2022SaveLearn
Higher-order corrections to spin-orbit and spin-spin tensor interactions in hydrogen molecular ions: theory and application to H2+We consider higher-order corrections to hyperfine coefficients related to the spin-orbit and spin-spin tensor interactions in hydrogen molecular ions. The mα7 (α)-order radiative…Mohammad Haidar, Vladimir I. Korobov, Laurent Hilico et al.·Jul 4, 2022SaveLearn
Optical pumping effects on the Rydberg EIT spectrumWe provide a universal discussion of the interplay between Rydberg-state electromagnetically induced transparency (EIT) and optical pumping (OP) in a thermal Rb87 medium. By pumping the population to…Hsuan-Jui Su, Jia-You Liou, I-Chun Lin et al.·Jul 4, 2022SaveLearn
Observation of oscillatory Raman gain associated with two-photon Rabi oscillations of nanofiber-coupled atomsQuantum emitters with a -type level structure enable numerous protocols and applications in quantum science and technology. Understanding and controlling their dynamics is, therefore, one of…Christian Liedl, Sebastian Pucher, Philipp Schneeweiss et al.·Jul 1, 2022SaveLearn
Precision millimetre-wave spectroscopy and calculation of the Stark manifolds in high Rydberg states of para-H2Precision measurements of transitions between singlet (S=0) Rydberg states of H2 belonging to series converging on the X+\,2g+(v+=0,N+=0) state of H2+ have been…Nicolas Hölsch, Ioana Doran, Maximilian Beyer et al.·Jun 30, 2022SaveLearn
Spectroscopy and ion thermometry of C2- using laser-cooling transitionsA prerequisite for laser cooling a molecular anion, which has not been achieved so far, is the precise knowledge of the relevant transition frequencies in the cooling scheme. To determine these…Markus Nötzold, Robert Wild, Christine Lochmann et al.·Jun 30, 2022SaveLearn
Doppler-free high resolution continuous wave optical UV-spectroscopy on the A\,2+ ← X\,23/2 transition in nitric oxideWe report on Doppler-free continuous-wave optical UV-spectroscopy resolving the hyperfine structure of the A\,2+ ← X\,23/2 transition in nitric oxide for…Patrick Kaspar, Fabian Munkes, Philipp Neufeld et al.·Jun 30, 2022SaveLearn
Coherent excitation of three-atom entangled states near a two-body F\"orster resonanceWe experimentally study three-body energy exchange during Rydberg excitation near a two-body F\"orster resonance. By varying the excitation pulse duration or Rabi frequency, we control the process…Tomohisa Yoda, Emily Hirsch, Jason Madison et al.·Jun 29, 2022SaveLearn
Ultracold ion-atom experiments: cooling, chemistry, and quantum effectsExperimental setups that study laser-cooled ions immersed in baths of ultracold atoms merge the two exciting and well-established fields of quantum gases and trapped ions. These experiments benefit…Rianne S. Lous, Rene Gerritsma·Jun 29, 2022SaveLearn
Independent atom model description of multiple ionization of water, methane, and ammonia molecules by proton impactWe study multiple ionization in proton collisions with water, methane, and ammonia molecules using an independent-atom model. Previous work on total (net) capture and ionization cross sections is…Hans Jürgen Lüdde, Marko Horbatsch, Tom Kirchner·Jun 29, 2022SaveLearn
Resonant two-photon ionization of helium atoms studied by attosecond interferometryWe study resonant two-photon ionization of helium atoms via the 1s3p, 1s4p and 1s5p1P1 states using the 15th harmonic of a titanium-sapphire laser for the excitation and a weak…Lana Neoričić, David Busto, Hugo Laurell et al.·Jun 28, 2022SaveLearn
QED calculations of energy levels of helium-like ions with 5 ≤ Z ≤ 30A calculation of two-electron QED effects to all orders in the nuclear binding strength parameter Zα is presented for the ground and n = 2 excited states of helium-like ions. After…Vladimir A. Yerokhin, Vojtěch Patkóš, Krzysztof Pachucki·Jun 28, 2022SaveLearn
Atomic clocks highly sensitive to the variation of the fine structure constant based on Hf II, Hf IV, and W VI ionsWe demonstrate that several metastable excited states in Hf~II, Hf~IV and W~VI ions may be good clock states since they are sufficiently long-living and are not sensitive to the perturbations.…Saleh O. Allehabi, V. A. Dzuba, V. V. Flambaum·Jun 28, 2022SaveLearn
A compact setup for loading magneto-optical trap in ultrahigh vacuum environmentWe have developed a compact setup which enables loading a magneto-optical trap (MOT) in ultra-high vacuum (UHV) environment. Nearly 1 × 108 atoms of 87Rb are trapped in the MOT at…Kavish Bharadwaj, Sourabh Sarkar, S. P. Ram et al.·Jun 27, 2022SaveLearn
Three-body continuum states and Efimov physics in non-integer geometryContinuum structures of three short-range interacting particles in a deformed external one-body field are investigated. We use the equivalent d-method employing non-integer dimension, d, in a…E. Garrido, E. R. Christensen, A. S. Jensen·Jun 27, 2022SaveLearn
Exchange correction for allowed β-decayWe investigate the exchange effect between the final atom's bound electrons and those emitted in the allowed β-decay of the initial nucleus. The electron wave functions are obtained with the…O. Niţescu, S. Stoica, F. Šimkovic·Jun 26, 2022SaveLearn
Spatially tunable spin interactions in neutral atom arraysAnalog quantum simulations with Rydberg atoms in optical tweezers routinely address strongly correlated many-body problems due to the hardware-efficient implementation of the Hamiltonian. Yet, their…Lea-Marina Steinert, Philip Osterholz, Robin Eberhard et al.·Jun 24, 2022SaveLearn
Transport of multispecies ion crystals through a junction in an RF Paul trapWe report on the first demonstration of transport of a multispecies ion crystal through a junction in an RF Paul trap. The trap is a two-dimensional surface-electrode trap with an X junction and…William Cody Burton, Brian Estey, Ian M. Hoffman et al.·Jun 23, 2022SaveLearn
Direct determination of the fully differential cross section of the ionization by the wave function in the coordinate representationThis paper is focused on showing that the fully differential cross section of ionization during a collision of a proton and an antiproton with a hydrogen atom is directly expressed by the wave…Zorigt Gombosuren, Khenmedekh Lochin, Aldarmaa Chuluunbaatar·Jun 23, 2022SaveLearn