Search for CP-violating nuclear magnetic quadrupole moment using the LuOH+ cationThe CP-violating interaction of the nuclear magnetic quadrupole moment (MQM) of the 175Lu nucleus with electrons in the molecular cation LuOH+ is studied. The resulting effect is expressed in…D. E. Maison, L. V. Skripnikov, V. V. Flambaum et al.·Jun 6, 2020SaveLearn
Two-photon atomic level widths at finite temperaturesThe thermal two-photon level broadening of the excited energy levels in the hydrogen and H-like helium is evaluated via the imaginary part of thermal two-loop self-energy correction for bound…T. Zalialiutdinov, A. Anikin, D. Solovyev·Jun 6, 2020SaveLearn
Nondestructive dispersive imaging of rotationally excited ultracold moleculesA barrier to realizing the potential of molecules for quantum information science applications is a lack of high-fidelity, single-molecule imaging techniques. Here, we present and theoretically…Qingze Guan, Michael Highman, Eric J. Meier et al.·Jun 5, 2020SaveLearn
Hyperfine structure in the H2+ and HD+ molecular ions at mα6 orderA complete effective Hamiltonian for relativistic corrections at orders mα6 and mα6(m/M) in a one-electron molecular system is derived from the NRQED Lagrangian. It includes spin-independent…Vladimir Korobov, Jean-Philippe Karr, Mohammad Haidar et al.·Jun 4, 2020SaveLearn
Precision Measurements in Few-Electron Molecules: The Ionization Energy of Metastable 4He2 and the First Rotational Interval of 4He2+Molecular helium represents a benchmark system for testing ab initio calculations on few-electron molecules. We report on the determination of the adiabatic ionization energy of the…Luca Semeria, Paul Jansen, Gian-Marco Camenisch et al.·Jun 4, 2020SaveLearn
Stochastic switching in Rydberg atomic ensembleWe demonstrated stochastic switching in a bistable system implemented with Rydberg atomic ensemble. The transition between the two states of the bistable system is driven by intensity noise of the…Jun He, Xin Wang, Xin Wen et al.·Jun 3, 2020SaveLearn
Perturbative theory of ensemble-averaged atomic dynamics in fluctuating laser fieldsWe have developed a perturbative method to model the resonant ionization of atomic systems in fluctuating laser fields. The perturbative method is based on an expansion in terms of the multitime…Tejaswi Katravulapally, L. A. A. Nikolopoulos·Jun 3, 2020SaveLearn
Establishing a nearly closed cycling transition in a polyatomic moleculeWe study optical cycling in the polar free radical calcium monohydroxide (CaOH) and establish an experimental path towards scattering 104 photons. We report rovibronic branching ratio…Louis Baum, Nathaniel B. Vilas, Christian Hallas et al.·Jun 2, 2020SaveLearn
Guided matter wave inertial sensing in a miniature physics packageWe describe an ultra-compact ( 10 cm3 physics package) inertial sensor based on atomic matter waves that are guided within an optical lattice during almost the entire interferometer cycle.…Karl Nelson, Chad Fertig, Paul Hamilton et al.·Jun 2, 2020SaveLearn
Angle-Resolved Attosecond Streaking of Twisted Attosecond PulsesThe present work focuses on the characterisation of the amount of orbital angular momentum (OAM) encoded in the twisted attosecond pulses via energy- and angle-resolved attosecond streaking in…Irfana N. Ansari, Deependra S. Jadoun, Gopal Dixit·Jun 2, 2020SaveLearn
Simultaneous dual-species laser cooling using an optical frequency combWe demonstrate 1D simultaneous laser cooling of 87Rb and 85Rb atoms using an optical frequency comb. By adjusting the pulse repetition frequency and the offset frequency, the frequency comb…D. Buhin, D. Kovacic, F. Schmid et al.·Jun 2, 2020SaveLearn
Ellipticity Dependence of Excitation and Ionization of Argon Atoms by Short-Pulse Infrared RadiationWhen atoms or molecules are exposed to strong short-pulse infrared radiation, ionization as well as "frustrated tunneling ionization" (FTI) can occur, in which a portion of the almost ionized…Thomas Pauly, Aaron Bondy, Kathryn R. Hamilton et al.·Jun 1, 2020SaveLearn
Laser-assisted photoionization of argon atoms: streaking, sideband and pulse train studying casesWe present a theoretical study of atomic laser-assisted photoionization emission (LAPE). We consider an atom driven by a linearly polarized XUV laser in two different scenarios: i) a single…Renata Della Picca, Marcelo F. Ciappina, Maciej Lewenstein et al.·Jun 1, 2020SaveLearn
Using random numbers to obtain Kohn-Sham potential for a given densityMost of the density-to-potential inversion methods developed over the years follow a general algorithm vxci+1(r) = vxci(r) + vxc(r), where $…Ashish Kumar, Manoj K. Harbola·May 30, 2020SaveLearn
Direct limits on the interaction of antiprotons with axion-like dark matterAstrophysical observations indicate that there is roughly five times more dark matter in the Universe than ordinary baryonic matter, with an even larger amount of the Universe's energy content…C. Smorra, Y. V. Stadnik, P. E. Blessing et al.·May 30, 2020SaveLearn
Controlling the nature of a charged impurity in a bath of Feshbach dimersWe theoretically study the dynamics of a trapped ion that is immersed in an ultracold gas of weakly bound atomic dimers created by a Feshbach resonance. Using quasi-classical simulations, we find a…Henrik Hirzler, Eleanor Trimby, Rianne S. Lous et al.·May 29, 2020SaveLearn
Frequency Ratio Measurements with 18-digit Accuracy Using a Network of Optical ClocksAtomic clocks occupy a unique position in measurement science, exhibiting higher accuracy than any other measurement standard and underpinning six out of seven base units in the SI system. By…Boulder Atomic Clock Optical Network, Collaboration, : et al.·May 29, 2020SaveLearn
Coherent suppression of tensor frequency shifts through magnetic field rotationWe introduce a scheme to coherently suppress second-rank tensor frequency shifts in atomic clocks, relying on the continuous rotation of an external magnetic field during the free atomic state…R. Lange, N. Huntemann, C. Sanner et al.·May 29, 2020SaveLearn
Studies of thorium and ytterbium ion trap loading from laser ablation for gravity monitoring with nuclear clocksCompact and robust ion traps for thorium are enabling technology for the next generation of atomic clocks based on a low-energy isomeric transition in the thorium-229 nucleus. We aim at a laser…Marcin Piotrowski, Jordan Scarabel, Mirko Lobino et al.·May 28, 2020SaveLearn
Relativistic mask method for electron momentum distributions after ionization of hydrogen-like ions in strong laser fieldsWavefunction-splitting or mask method, widely used in the non-relativistic calculations of the photoelectron angular distributions, is extended to the relativistic domain within the dipole…D. A. Tumakov, Dmitry A. Telnov, G. Plunien et al.·May 27, 2020SaveLearn
Unified model of ultracold molecular collisionsA scattering model is developed for ultracold molecular collisions, which allows inelastic processes, chemical reactions, and complex formation to be treated in a unified way. All these scattering…James F. E. Croft, John L. Bohn, Goulven Quéméner·May 27, 2020SaveLearn
Rydberg spectrum of a single trapped Ca+ ion: A Floquet analysisWe compute the Rydberg spectrum of a single Ca+ ion in a Paul trap by incorporating various internal and external coupling terms of the ion to the trap in the Hamiltonian. The coupling terms…Mariusz Pawlak, H. R. Sadeghpour·May 27, 2020SaveLearn
Quantum State Preparation of Hydrogen Atoms by Hyperfine QuenchingWe discuss the use of a region of uniform and constant magnetic field in order to implement a two-state atomic polarizer for an H(2S) beam. We have observed that a device with such field…Amanda Alencar, Ítalo Prazeres, Carlos Renato de Carvalho et al.·May 27, 2020SaveLearn
Ionization and excitation of low-lying circular states of the hydrogen atom in strong circularly polarized laser fieldsWe perform ab initio calculations for the hydrogen atom initially in one of the six circular bound states with the principal quantum numbers n = 2, 3 and 4, irradiated by a short circularly polarized…Jarosław H. Bauer, Zbigniew Walczak·May 27, 2020SaveLearn
Heteronuclear long-range Rydberg moleculesWe present the formation of homonuclear Cs2, K2, and heteronuclear CsK long-range Rydberg molecules in a dual-species magneto-optical trap for 39K and 133Cs by one-photon UV photoassociation. The…Michael Peper, Johannes Deiglmayr·May 26, 2020SaveLearn