Transition cancellations of 87Rb and 85Rb atoms in a magnetic field setting new standardsWe have analyzed the magnetic field dependences of intensities of all the optical transitions between magnetic sublevels of hyperfine levels, excited with σ+, π and σ- polarized…Artur Aleksanyan, Rodolphe Momier, Emil Gazazyan et al.·Jul 22, 2020SaveLearn
Ab initio electronic factors of the A and B hyperfine structure constants for the 5s25p6s \; 1,3\! P o1 states in Sn ILarge-scale ab initio calculations of the electric field gradient, which constitutes the electronic contribution to the electric quadrupole hyperfine constant B, were performed for the…Asimina Papoulia, Sacha Schiffmann, Jacek Bieroń et al.·Jul 22, 2020SaveLearn
Phase cycling of extreme ultraviolet pulse sequences generated in rare gasesThe development of schemes for coherent nonlinear time-domain spectroscopy in the extreme-ultraviolet regime (XUV) has so far been impeded by experimental difficulties that arise at these short…Andreas Wituschek, Oleg Kornilov, Tobias Witting et al.·Jul 22, 2020SaveLearn
Effect of trap symmetry and atom-atom interactions on a trapped atom interferometer with internal state labellingIn this paper, we study the dynamics of a trapped atom interferometer with internal state labelling in the presence of interactions. We consider two situations: an atomic clock in which the internal…M. Dupont-Nivet, C. I. Westbrook, S. Schwartz·Jul 22, 2020SaveLearn
Projectile Transverse Momentum Controls Emission in Electron Vortex Ionization CollisionsThe realization of electron vortex beams in the past decade has led to numerous proposed applications in fields from electron microscopy to control and manipulation of individual molecules. Yet…A. Plumadore, A. L. Harris·Jul 22, 2020SaveLearn
From megahertz to terahertz qubits encoded in molecular ions: theoretical analysis of dipole-forbidden spectroscopic transitions in N2+Recent advances in quantum technologies have enabled the precise control of single trapped molecules on the quantum level. Exploring the scope of these new technologies, we studied theoretically the…Kaveh Najafian, Ziv Meir, Stefan Willitsch·Jul 21, 2020SaveLearn
Novel repumping on 3P0→3D1 for Sr magneto-optical trap and Land\'e g factor measurement of 3D1We realize an experimental facility for cooling and trapping strontium (Sr) atoms and measure the Land\'e g factor of 3D1 of 88Sr. Thanks to a novel repumping scheme with the…Shengnan Zhang, Preetam Ramchurn, Marco Menchetti et al.·Jul 20, 2020SaveLearn
Tunable transverse spin-motion coupling for quantum information processingLaser-controlled entanglement between atomic qubits (`spins') and collective motion in trapped ion Coulomb crystals requires conditional momentum transfer from the laser. Since the spin-dependent…Adam D West, Randall Putnam, Wesley C Campbell et al.·Jul 20, 2020SaveLearn
A quantum simulation of dissociative ionization of H2+ in full dimensionality with time dependent surface flux methodThe dissociative ionization of H2+ in a linearly polarized, 400 nm laser pulse is simulated by solving a three-particle time-dependent Schr\"odinger equation in full dimensionality without using…Jinzhen Zhu·Jul 20, 2020SaveLearn
Ultralong spin coherence times for rubidium atoms in solid parahydrogen via dynamical decouplingCoherence time is an essential parameter for quantum sensing, quantum information, and quantum computation. In this work, we demonstrate electron spin coherence times as long as 0.1 s for an ensemble…Sunil Upadhyay, Ugne Dargyte, David Patterson et al.·Jul 20, 2020SaveLearn
The branching ratio of intercombination A1Σ+ b3Π a3Σ+/X1Σ+ transitions in the RbCs molecule: measurements and calculationsWe observed the A1Σ+ b3Π a3Σ+/X1Σ+ laser-induced fluorescence (LIF) spectra of the RbCs molecule excited from the ground X1Σ+ state by the Ti:Sapphire laser. The LIF radiation…Valts Krumins, Artis Kruzins, Maris Tamanis et al.·Jul 20, 2020SaveLearn
Crystal-momentum-resolved contributions to multiple plateaus of high-order harmonic generation from band-gap materialsWe study the crystal-momentum-resolved contributions to the high-order harmonic generation (HHG) in band-gap materials, and identify the relevant initial crystal momenta for the first and higher…Chuan Yu, Hossein Iravani, Lars Bojer Madsen·Jul 17, 2020SaveLearn
Precision measurements with cold atoms and trapped ionsRecent progresses on quantum control of cold atoms and trapped ions in both the scientific and technological aspects greatly advance the applications in precision measurement. Thanks to the…Qiuxin Zhang, Yirong Wang, Chenhao Zhu et al.·Jul 17, 2020SaveLearn
Single-photon-level sub-Doppler pump-probe spectroscopy of rubidiumWe propose and demonstrate pump-probe spectroscopy of rubidium absorption which reveals the sub-Doppler hyperfine structure of the 5S1/2 5P3/2 (D2) transitions.…Paul Burdekin, Samuele Grandi, Rielly Newbold et al.·Jul 16, 2020SaveLearn
Vacuum Characterization of a Compact Room-temperature Trapped Ion SystemWe present the design and vacuum performance of a compact room-temperature trapped ion system for quantum computing, consisting of a ultra-high vacuum (UHV) package, a micro-fabricated surface trap…Yuhi Aikyo, Geert Vrijsen, Thomas W. Noel et al.·Jul 15, 2020SaveLearn
Cavity-QED determination of the natural linewidth of the 87Sr millihertz clock transition with 30μHz resolutionWe present a new method for determining the intrinsic natural linewidth or lifetime of exceptionally long-lived optical excited states. Such transitions are key to the performance of state-of-the-art…Juan A. Muniz, Dylan J. Young, Julia R. K. Cline et al.·Jul 15, 2020SaveLearn
Epidemic growth and Griffiths effects on an emergent network of excited atomsWhether it be physical, biological or social processes, complex systems exhibit dynamics that are exceedingly difficult to understand or predict from underlying principles. Here we report a striking…T. M. Wintermantel, M. Buchhold, S. Shevate et al.·Jul 15, 2020SaveLearn
Two-way single-photon-level frequency conversion between 852nm and 1560nm for connecting cesium D2 line with the telecom C-bandA compact setup for two-way single-photon-level frequency conversion between 852 nm and 1560 nm has been implemented with the same periodically-poled magnesium-oxide-doped lithium niobate (PPMgO:LN)…Kong Zhang, Jun He, Junmin Wang·Jul 14, 2020SaveLearn
Resonance Laser Ionization Spectroscopy of SeleniumPhotoionization spectra of Se have been studied by step-wise resonance laser ionization. The Rydberg series 4s24p3(4S)np 3P0,1,2 and 4s24p3(4S)np 5P1,2,3 were…R. Li, Y. Liu, M. Mostamand et al.·Jul 14, 2020SaveLearn
Hyperfine structure of 173Yb+: toward resolving the 173Yb nuclear octupole moment puzzleHyperfine structure (HFS) of atomic energy levels arises due to interactions of atomic electrons with a hierarchy of nuclear multipole moments, including magnetic dipole, electric quadrupole and…Di Xiao, Jiguang Li, Wesley C. Campbell et al.·Jul 14, 2020SaveLearn
Speeding Up Particle Slowing using Shortcuts to AdiabaticityWe propose a method for slowing particles by laser fields that potentially has the ability to generate large forces without the associated momentum diffusion that results from the random directions…John P. Bartolotta, Jarrod T. Reilly, Murray J. Holland·Jul 14, 2020SaveLearn
Ultralong-range Rydberg bi-moleculesWe predict that ultralong-range Rydberg bi-molecules form in collisions between polar molecules in cold and ultracold settings. The collision of -doublet nitric oxide (NO) with long-lived…Rosario Gonzalez-Ferez, Janine Shertzer, H. R. Sadeghpour·Jul 13, 2020SaveLearn
Blueshift of high-order harmonic generation in crystalline silicon subjected to intense femtosecond near-infrared laser pulseWe present the generation of high order harmonics in crystalline silicon subjected to intense near-infrared 30fs laser pulse. The harmonic spectrum extends from the near infrared to the extreme…Boyan Obreshkov, Tzveta Apostolova·Jul 13, 2020SaveLearn
Interacting quantum mixtures for precision atom interferometryWe present a source engineering concept for a binary quantum mixture suitable as input for differential, precision atom interferometry with drift times of several seconds. To solve the non-linear…Robin Corgier, Sina Loriani, Holger Ahlers et al.·Jul 9, 2020SaveLearn
A Velocity Map Imaging apparatus optimized for high-resolution crossed molecular beam experimentsWe present the design of a Velocity Map Imaging apparatus tailored to the demands of high-resolution crossed molecular beam experiments employing Stark or Zeeman decelerators. The key requirements…Vikram Plomp, Zhi Gao, Sebastiaan Y. T. van de Meerakker·Jul 9, 2020SaveLearn