Three-dimensional matter-wave interferometry of a trapped single ionWe report on a demonstration of Ramsey interferometry by three-dimensional motion with a trapped 171Yb+ ion. We applied a momentum kick to the ion in a direction diagonal to the trap axes to…Ami Shinjo, Masato Baba, Koya Higashiyama et al.·Nov 17, 2020SaveLearn
Atomic ionization by multicharged ions interpreted in terms of poles in the velocity complex spaceWe study the single ionization of hydrogen and helium by the impact of a highly-charged Coulomb projectile. To interpretate the cross section we introduce a diagonal Pad\'e approximant. We find…J. E. Miraglia·Nov 16, 2020SaveLearn
PyLCP: A python package for computing laser cooling physicsWe present a python object-oriented computer program for simulating various aspects of laser cooling physics. Our software is designed to be both easy to use and adaptable, allowing the user to…S. Eckel, D. S. Barker, E. B. Norrgard et al.·Nov 16, 2020SaveLearn
Demonstration of the nearly continuous operation of an 171Yb optical lattice clock for half a yearOptical lattice clocks surpass primary Cs microwave clocks in frequency stability and accuracy, and are promising candidates for a redefinition of the second in the International System of Units…Takumi Kobayashi, Daisuke Akamatsu, Kazumoto Hosaka et al.·Nov 15, 2020SaveLearn
Enhanced atom-by-atom assembly of arbitrary tweezers arraysWe report on improvements extending the capabilities of the atom-by-atom assembler described in [Barredo et al., Science 354, 1021 (2016)] that we use to create fully-loaded target arrays of more…Kai-Niklas Schymik, Vincent Lienhard, Daniel Barredo et al.·Nov 13, 2020SaveLearn
Resolving Multiphoton Processes with High-Order Anisotropy Ultrafast X-ray ScatteringWe present first results on ultrafast X-ray scattering of strongly driven molecular Iodine and analysis of high-order anisotropic components of the scattering signal, up to four-photon absorption. We…Adi Natan, Aviad Schori, Grace Owolabi et al.·Nov 13, 2020SaveLearn
Magic Wavelengths of the Yb 6s2\,1S0-6s6p\,3P1 Intercombination TransitionWe calculate and measure the magic wavelengths for the 6s2\,1S0-6s6p\,3P1 intercombination transition of the neutral ytterbium atom. The calculation is performed with the ab…T. A. Zheng, Y. A. Yang, M. S. Safronova et al.·Nov 13, 2020SaveLearn
Quantum Blackbody ThermometryBlackbody radiation (BBR) sources are calculable radiation sources that are frequently used in radiometry, temperature dissemination, and remote sensing. Despite their ubiquity, blackbody sources and…Eric B. Norrgard, Stephen P. Eckel, Christopher L. Holloway et al.·Nov 12, 2020SaveLearn
Isotope Shifts in the Metastable a5F and Excited y5G Terms of Atomic TitaniumWe measure and analyze the isotope shifts the multiplet of transitions between the metastable a5F and excited y5G terms of neutral titanium by probing a titanium vapor in a hollow…Andrew O. Neely, Kayleigh Cassella, Scott Eustice et al.·Nov 11, 2020SaveLearn
Photoionization of aligned excited states in neon by attosecond laser pulsesWe describe numerically the ionization process induced by linearly and circularly polarized XUV attosecond laser pulses on an aligned atomic target, specifically, the excited state…Juan J. Omiste, Lars Bojer Madsen·Nov 11, 2020SaveLearn
CHIANTI -- an atomic database for emission lines -- Paper XVI: Version 10, further extensionsWe present version 10 of the CHIANTI package. In this release, we provide updated atomic models for several helium-like ions and for all the ions of the beryllium, carbon and magnesium isoelectronic…G. Del Zanna, K. P. Dere, P. R. Young et al.·Nov 10, 2020SaveLearn
Superradiance as single scattering embedded in an effective mediumWe present an optical picture of linear-optics superradiance, based on a single scattering event embedded in a dispersive effective medium composed by the other atoms. This linear-dispersion theory…P. Weiss, A. Cipris, R. Kaiser et al.·Nov 10, 2020SaveLearn
Polarization-Dependent Disappearance of a Resonance Signal -- Indication for Optical Pumping in a Storage Ring?We report on laser spectroscopic measurements on Li+ ions in the experimental storage ring ESR at the GSI Helmholtz Centre for Heavy Ion Research. Driving the $2s\,3\!S1\;(F=32)…W. Nörtershäuser, A. Surzhykov, R. Sánchez et al.·Nov 9, 2020SaveLearn
Gravity Field Mapping Using Laser Coupled Quantum Accelerometers in SpaceThe emergence of quantum technologies, including cold atom based accelerometers, offers an opportunity to improve the performances of space geodesy missions. In this context, CNES initiated an…T. Lévèque, C. Fallet, M. Mandea et al.·Nov 6, 2020SaveLearn
Non-adiabatic, Relativistic, and Leading-order QED Corrections for Rovibrational Intervals of 4He2+ (X\ 2u+)The rovibrational intervals of the 4He2+ molecular ion in its X\ 2u+ ground electronic state are computed by including the non-adiabatic, relativistic, and leading-order…Dávid Ferenc, Vladimir I. Korobov, Edit Mátyus·Nov 6, 2020SaveLearn
Raman transitions driven by phase-modulated light in a cavity atom interferometerAtom interferometers in optical cavities benefit from strong laser intensities and high-quality wavefronts. The laser frequency pairs that are needed for driving Raman transitions (often generated by…Sofus L. Kristensen, Matt Jaffe, Victoria Xu et al.·Nov 5, 2020SaveLearn
Higher-order corrections to spin-spin scalar interactions in HD+ and H2+The largest hyperfine interaction coefficients in the hydrogen molecular ion HD+, i.e. the electron-proton and electron-deuteron spin-spin scalar interactions, are calculated with estimated…Jean-Philippe Karr, Mohammad Haidar, Laurent Hilico et al.·Nov 5, 2020SaveLearn
Classical calculation of radiative decay rates of hydrogenic Stark statesThe Kepler-Coulomb problem is solved in parabolic coordinates and the Larmor radiation problem is analyzed to complement a previous study performed for the usual representation in spherical polar…Michael Horbatsch, Marko Horbatsch·Nov 5, 2020SaveLearn
Local most-probable routes and classic-quantum correspondence in strong-field two-dimensional tunneling ionizationWe study ionization of atoms in strong two-dimensional (2D) laser fields with various forms, numerically and analytically. We focus on the local most-probable tunneling routes (some specific electron…C. Chen, X. X. Ji, W. Y. Li et al.·Nov 5, 2020SaveLearn
Quantum path interferences in high-order harmonic generation from aligned diatomic moleculesElectron quantum path interferences in strongly laser-driven aligned molecules and their dependence on the molecular alignment is an essential open problem in strong-field molecular physics. Here, we…S. Chatziathanasiou, I. Liontos, E. Skantzakis et al.·Nov 4, 2020SaveLearn
Random matrix theory analysis of a temperature-related transformation in statistics of Fano-Feshbach resonances in Thulium atomsRecently, transformation from random to chaotic behavior in the statistics of Fano-Feshbach resonances was observed in thulium atoms with rising ensemble temperature. We performed random matrix…E. T. Davletov, V. V. Tsyganok, V. A. Khlebnikov et al.·Nov 3, 2020SaveLearn
Rydberg States of H3 and HeH as Potential Coolants for Primordial Star FormationCurrent theory and measurements establish the age of the universe as ca. 13.8 billion years. For the first several hundred million years of its existence, it was a dark, opaque void. After that, the…Gokul Kannan, Jeremy R. Chien, Anthony J. Benjamin et al.·Nov 3, 2020SaveLearn
The Heidelberg compact electron beam ion trapsElectron beam ion traps (EBIT) are ideal tools for both production and study of highly charged ions (HCI). In order to reduce their construction, maintenance, and operation costs we have developed a…P. Micke, S. Kühn, L. Buchauer et al.·Nov 2, 2020SaveLearn
Triple ionization and "frustrated" triple ionization in triatomic molecules driven by intense laser fieldsWe formulate a three-dimensional semi-classical model to treat three-electron escape dynamics in a strongly-driven linear triatomic molecule, HeH2+. Our model includes the Coulomb…M. B. Peters, V. P. Majety, A. Emmanouilidou·Oct 30, 2020SaveLearn
Coherent laser spectroscopy of highly charged ions using quantum logicPrecision spectroscopy of atomic systems is an invaluable tool for the advancement of our understanding of fundamental interactions and symmetries. Recently, highly charged ions (HCI) have been…P. Micke, T. Leopold, S. A. King et al.·Oct 29, 2020SaveLearn