Full-dimensional quantum scattering calculations on ultracold atom-molecule collisions in magnetic fields: The role of molecular vibrationsRigorous quantum scattering calculations on ultracold molecular collisions in external fields present an outstanding computational problem due to strongly anisotropic atom-molecule interactions that…Masato Morita, Jacek Kłos, Timur V. Tscherbul·May 4, 2020SaveLearn
Improved isotope-shift-based bounds on bosons beyond the Standard Model through measurements of the 2D3/2 - 2D5/2 interval in Ca+We perform high-resolution spectroscopy of the 3d~2D3/2 - 3d~2D5/2 interval in all stable even isotopes of ACa+ (A = 40, 42, 44, 46 and 48) with an accuracy of 20 Hz…Cyrille Solaro, Steffen Meyer, Karin Fisher et al.·May 1, 2020SaveLearn
Heteronuclear Rydberg moleculesWe report the creation of heteronuclear ultralong-range Rydberg-molecule dimers by excitation of minority 88Sr atoms to 5sns\,3S1 Rydberg states (n=31-39) in a dense background of…J. D. Whalen, S. K. Kanungo, Y. Lu et al.·Apr 30, 2020SaveLearn
Opacity modelling of heavy-metal hot subdwarfs. Photoionization of Sr0, Y+ and Zr2+Heavy-metal hot subdwarfs (sdB and sdO) represent a small group of stars with unusually high concentrations of trans-iron elements in their atmospheres, having abundances ~ 10000 times solar. One…L. Fernández-Menchero, C. S. Jeffery, C. A. Ramsbottom et al.·Apr 28, 2020SaveLearn
Bi-selective pulses for large-area atom interferometryWe present designs for the augmentation 'mirror' pulses of large-momentum-transfer atom interferometers that maintain their fidelity as the wavepacket momentum difference is increased. These…Jack Saywell, Max Carey, Ilya Kuprov et al.·Apr 25, 2020SaveLearn
Calculation of hyperfine magnetic anomaly in many-electron atomsThe precision measurements of the ratio of hyperfine structure constants for s1/2 and p1/2 states allow us to estimate the difference between hyperfine magnetic anomalies for these levels.…E. A. Konovalova, Yu. A. Demidov, M. G. Kozlov·Apr 25, 2020SaveLearn
Modeling the potential interaction energy of two atoms with hydrogen-like wave functionsThe Fourier component of the potential energy of interaction of an atom with an atom is represented as a polynomial of the fourth degree from the atomic form factor. A numerical calculation was…Vladimir. P. Koshcheev, Dmitry. A. Morgun, Yuriy. N. Shtanov·Apr 25, 2020SaveLearn
Spin-exchange collisions in hot vapors create and sustain bipartite entanglementSpin-exchange collisions in alkali or alkali/noble gas vapors are at the basis of quantum sensing, nucleon structure studies, tests of fundamental symmetries, and medical imaging. We here show that…K. Mouloudakis, I. K. Kominis·Apr 24, 2020SaveLearn
Generating 500 mW for laser cooling of strontium atoms by injection locking a high power laser diodeWe report on the generation of 500 mW of spectrally pure laser light at the 460.86 nm transition used for laser cooling of strontium atoms. To this end we inject a high power single mode laser diode…Vladimir Schkolnik, Jason R. Williams, Nan Yu·Apr 24, 2020SaveLearn
Performance of an optical single-sideband laser system for atom interferometryThis paper reports on a detailed performance characterization of a recently developed optical single-sideband (OSSB) laser system based on an IQ modulator and second-harmonic generation for rubidium…Clemens Rammeloo, Lingxiao Zhu, Yu-Hung Lien et al.·Apr 24, 2020SaveLearn
Carbon monoxide interacting with free-electron-laser pulsesWe study the interaction of a heteronuclear diatomic molecule, carbon monoxide, with a free-electron laser (FEL) pulse. We compute the ion yields and the intermediate states by which the ion yields…Henry I B Banks, Antonis Hadjipittas, Agapi Emmanouilidou·Apr 24, 2020SaveLearn
Evidence for Nonlinear Isotope Shift in Yb+ Search for New BosonWe measure isotope shifts for five Yb+ isotopes with zero nuclear spin on two narrow optical quadrupole transitions 2S1/2 → 2D3/2, 2S1/2 → 2D5/2…Ian Counts, Joonseok Hur, Diana P. L. Aude Craik et al.·Apr 23, 2020SaveLearn
Complex magnetic order in YbMn2Sb2 single crystals observed by μSRThe crystal growth and the structural, transport and magnetic properties of the magnetically frustrated YbMn2Sb2 single crystals are reported. The crystals show a trigonal symmetry (space group…J. Munevar, F. R. Arantes, L. Mendonça-Ferreira et al.·Apr 23, 2020SaveLearn
Nano-structured alkali-metal vapor cellsAtom-light interactions in nano-scale systems hold great promise for novel technologies based on integrated emitters and optical modes. We present the design architecture, construction method, and…T. F. Cutler, W. J. Hamlyn, J. Renger et al.·Apr 22, 2020SaveLearn
Crossed-Beam slowing to enhance narrow-line Ytterbium Magneto-Optic TrapsWe demonstrate a method to enhance the atom loading rate of a ytterbium (Yb) magneto-optic trap (MOT) operating on the 556 nm 1S0 → 3P1 intercombination transition (narrow…Benjamin Plotkin-Swing, Anna Wirth, Daniel Gochnauer et al.·Apr 21, 2020SaveLearn
A Review of Contemporary Atomic Frequency StandardsAtomic frequency standards are used to generate accurate and precise time and frequency, enabling many communications, synchronization, and navigation systems in modern life. GPS and other satellite…Bonnie L. Schmittberger, David R. Scherer·Apr 21, 2020SaveLearn
Observation of the Dipole Blockade Effect in Detecting Rydberg Atoms by the Selective Field Ionization MethodThe dipole blockade effect at laser excitation of mesoscopic ensembles of Rydberg atoms lies in the fact that the excitation of one atom to a Rydberg state blocks the excitation of other atoms due to…E. A. Yakshina, D. B. Tretyakov, V. M. Entin et al.·Apr 21, 2020SaveLearn
Optical cycling, radiative deflection and laser cooling of barium monohydride (BaH)We present the first experimental demonstration of radiation pressure force deflection and direct laser cooling for barium monohydride (BaH) molecules resulting from multiple photon scattering.…Rees L. McNally, Ivan Kozyryev, Sebastian Vazquez-Carson et al.·Apr 20, 2020SaveLearn
Modulation induced splitting of the magnetic resonanceThe splitting of magnetic resonance induced by a linearly polarized frequency comb is presented for Hanle experimental configuration. The experiment is carried out with thermal Rubidium atoms in an…Rita Behera, Swarupananda Pradhan·Apr 20, 2020SaveLearn
Theory of Subcycle Linear Momentum Transfer in Strong-Field Tunneling IonizationInteraction of a strong laser pulse with matter transfers not only energy but also linear momentum of the photons. Recent experimental advances have made it possible to detect the small amount of…Hongcheng Ni, Simon Brennecke, Xiang Gao et al.·Apr 19, 2020SaveLearn
Many-electron effects in the hyperfine splitting of lithiumlike ionsThe rigorous QED evaluation of the one- and two-photon exchange corrections to the ground-state hyperfine splitting in Li-like ions is presented for the wide range of nuclear charge number $Z= 7 -…V. P. Kosheleva, A. V. Volotka, D. A. Glazov et al.·Apr 19, 2020SaveLearn
A semiclassical theory of the chemical potential for the Atomic ElementsThe chemical potiential for the ground states of the atomic elements have been calculated within the semiclassical approximation The present work closely follows Schwinger and Englert's…Bernard J. Laurenzi·Apr 18, 2020SaveLearn
Three-body Förster resonance of a new type in Rydberg atomsThe three-body Förster resonances 3× nP3/2 nS1/2 +(n+1)S1/2 +nP3/2* controlled by a dc electric field were realized earlier by the authors in an ensemble of several…P. Cheinet, K. -L. Pham, P. Pillet et al.·Apr 18, 2020SaveLearn
Enhanced principle component method for fringe removal in cold atom imagesMany powerful imaging techniques for cold atoms are based on determining the optical density by comparing a beam image having passed through the atom cloud to a reference image taken under similar…Feng Xiong, Yun Long, Colin V. Parker·Apr 18, 2020SaveLearn
Core polarizability of rubidium using spectroscopy of the ng to nh, ni Rydberg transitionsWe present a precise measurement of the rubidium ionic core polarizability. The results can be useful for interpreting experiments such as parity violation or black-body radiation shifts in atomic…S. J. Berl, C. A. Sackett, T. F. Gallagher et al.·Apr 17, 2020SaveLearn