Empirical LiK excited state potentials: connecting short range and near dissociation expansionsWe report on a high-resolution spectroscopic survey of 6Li40K molecules near the 2S+4P dissociation threshold and produce a fully empirical…Sofia Botsi, Anbang Yang, Mark M. Lam et al.·Oct 15, 2021SaveLearn
Generation of Intense Phase-Stable Femtosecond Hard X-ray Pulse PairsCoherent nonlinear spectroscopies and imaging in the X-ray domain provide direct insight into the coupled motions of electrons and nuclei with resolution on the electronic length and time scale. The…Yu Zhang, Thomas Kroll, Clemens Weninger et al.·Oct 15, 2021SaveLearn
Gauge effects in bound-bound Rydberg-transition matrix elementsAccurate data on electric-dipole transition matrix elements (EDTMs) for bound-bound Rydberg-atom transitions become increasingly important in science and technology. Here we compute radial EDTMs of…Alisher Duspayev, Georg Raithel·Oct 14, 2021SaveLearn
Increasing decoherence rate of Rydberg polaritons due to accumulating dark Rydberg atomsWe experimentally observed an accumulative type of nonlinear attenuation and distortion of slow light, i.e., Rydberg polaritons, with the Rydberg state |32D5/2 in the weak-interaction…Ko-Tang Chen, Bongjune Kim, Chia-Chen Su et al.·Oct 13, 2021SaveLearn
Electron Spectra for Twisted Electron CollisionsIonization collisions have important consequences in many physical phenomena, and the mechanism that leads to ionization is not universal. Double differential cross sections (DDCSs) are often used to…A. Plumadore, A. L. Harris·Oct 8, 2021SaveLearn
Photoelectron energy peaks shift against the radiation pressure in strong field ionizationThe photoelectric effect describes the ejection of an electron upon absorption of one or several photons. The kinetic energy of this electron is determined by the photon energy reduced by the binding…Kang Lin, Sebastian Eckart, Alexander Hartung et al.·Oct 8, 2021SaveLearn
Machine learner optimization of optical nanofiber-based dipole traps for cold 87Rb atomsIn two-color optical nanofiber-based dipole traps for cold alkali atoms, the trap efficiency depends on the wavelength and intensity of light in the evanescent field, and the initial laser-cooling…Ratnesh K. Gupta, Jesse L. Everett, Aaron D. Tranter et al.·Oct 8, 2021SaveLearn
-enhanced gray molasses in a tetrahedral laser beam geometryWe report observation of sub-Doppler cooling of lithium using an irregular-tetrahedral laser beam arrangement, which is produced by a nanofabricated diffraction grating. We are able to capture 11(2)…D. S. Barker, E. B. Norrgard, N. N. Klimov et al.·Oct 6, 2021SaveLearn
Second-Scale 9Be+ Spin Coherence in a Compact Penning TrapWe report microwave spectroscopy of co-trapped 9Be+ and 40Ca+ within a compact permanent-magnet-based Penning ion trap. The trap is constructed with a reconfigurable array of…Brian J. McMahon, Brian C. Sawyer·Oct 6, 2021SaveLearn
Electromagnetically induced transparency based Rydberg-atom sensor for quantum voltage measurementsWe investigate the Stark shift in Rydberg rubidium atoms through electromagnetically induced transparency for the measurement of direct current (dc) and 60~Hz alternating current (ac) voltages. This…Christopher L. Holloway, Nikunjkumar Prajapati, John Kitching et al.·Oct 5, 2021SaveLearn
A Digital Feedback System for Advanced Ion Manipulation Techniques in Penning TrapsThe possibility to apply active feedback to a single ion in a Penning trap using a fully digital system is demonstrated. Previously realized feedback systems rely on analog circuits that are…Jost Herkenhoff, Menno Door, Pavel Filianin et al.·Oct 4, 2021SaveLearn
Nondipole effects on the double-slit interference in molecular ionization by xuv pulsesThe double-slit interference in single-photon ionization of the diatomic molecular ion H2+ is theoretically studied beyond the dipole approximation. Via simulating and comparing the…Kunlong Liu, Yibo Hu, Qingbin Zhang et al.·Oct 4, 2021SaveLearn
Transient Density-Induced Dipolar Interactions in a Thin Vapor CellWe exploit the effect of light-induced atomic desorption to produce high atomic densities (n k3) in a rubidium vapor cell. An intense off-resonant laser is pulsed for roughly one nanosecond on…Florian Christaller, Max Mäusezahl, Felix Moumtsilis et al.·Oct 1, 2021SaveLearn
Measurement of the tune-out wavelength for 133Cs at 880 nmWe perform a measurement of the tune-out wavelength, λ0, between the D1, 62S1/2→62P1/2, and D2, 62S1/2→62P3/2, transitions for 133Cs…Apichayaporn Ratkata, Philip D. Gregory, Andrew D. Innes et al.·Sep 30, 2021SaveLearn
Spin-Wave Quantum Computing with Atoms in a Single-Mode CavityWe present a method for network-capable quantum computing that relies on holographic spin-wave excitations stored collectively in ensembles of qubits. We construct an orthogonal basis of spin waves…Kevin C. Cox, Przemyslaw Bienias, David H. Meyer et al.·Sep 30, 2021SaveLearn
Linear and continuous variable spin-wave processing using a cavity-coupled atomic ensembleSpin-wave excitations in ensembles of atoms are gaining attention as a quantum information resource. However, current techniques with atomic spin waves do not achieve universal quantum information…Kevin C. Cox, Przemyslaw Bienias, David H. Meyer et al.·Sep 30, 2021SaveLearn
Buffer gas cooling of ions in time-dependent traps using ultracold atomsFor exploration of quantum effects with hybrid atom-ion systems, reaching ultracold temperatures is the major limiting factor. In this work, we present results on numerical simulations of trapped ion…E. Trimby, H. Hirzler, H. Fürst et al.·Sep 30, 2021SaveLearn
Real-time detection of Rydberg state dynamics of cold atoms using an optical cavityThis work reports on the real-time detection of internal-state dynamics of cold Rb87 atoms being excited to the 30D5/2 Rydberg state via two-photon excitation. A mesoscopic cloud of atoms…Elmer Suarez, Philip Wolf, Patrizia Weiss et al.·Sep 30, 2021SaveLearn
Ionization states for the multi-petawatt laser-QED regimeA paradigm shift in the physics of laser-plasma interactions is approaching with the commissioning of multi-petawatt laser facilities world-wide. Radiation reaction processes will result in the onset…I. Ouatu, B. T. Spiers, R. Aboushelbaya et al.·Sep 30, 2021SaveLearn
Visualization of magnetic fields with cylindrical vector beams in a warm atomic vaporWe propose and demonstrate an experimental implementation for the observation of magnetic fields from spatial features of absorption profiles in a warm atomic vapor. A radially polarized vector beam…Shuwei Qiu, Jinwen Wang, Francesco Castellucci et al.·Sep 29, 2021SaveLearn
Photoexcitation of atoms by cylindrically polarized Laguerre-Gaussian beamsWe analyze the photo-excitation of atoms with a single valence electron by cylindrically polarized Laguerre-Gaussian beams. Theoretical analysis is performed within the framework of first-order…S. Ramakrishna, J. Hofbrucker, S. Fritzsche·Sep 29, 2021SaveLearn
Red- and blue-detuned magneto-optical trapping with liquid crystal variable retardersWe exploit red- and blue-detuned magneto optical trapping (MOT) of 87Rb benefitting from a simplified setup based on liquid crystal variable retarders (LCVR). To maintain the trapping forces…Baptist Piest, Vera Vollenkemper, Jonas Böhm et al.·Sep 29, 2021SaveLearn
Theoretical study of electronic structure of hafnium (Hf, Z=72) and rutherfordium (Rf, Z=104) atoms and their ions: Energy levels and hyperfine structure constantsEnergy levels, magnetic dipole, and electric quadrupole hyperfine structure of the superheavy element rutherfordium (Rf, Z=104) and its first three ions are calculated using a combination of the…Saleh O. Allehabi, V. A. Dzuba, V. V. Flambaum·Sep 28, 2021SaveLearn
The role of QED effects in transition energies of heavy-atom alkaline earth monofluoride molecules: a theoretical study of Ba+, BaF, RaF and E120FHeavy-atom alkaline earth monofluoride molecules are considered as prospective systems to study spatial parity or spatial parity and time-reversal symmetry violating effects such as the nuclear…Leonid V. Skripnikov, Dmitry V. Chubukov, Vera M. Shakhova·Sep 28, 2021SaveLearn
SU(2) hyper-clocks: quantum engineering of spinor interferences for time and frequency metrologyIn 1949, Ramsey's method of separated oscillating fields was elaborated boosting over many decades metrological performances of atomic clocks and becoming the standard technique for very high…T. Zanon-Willette, D. Wilkowski, R. Lefevre et al.·Sep 28, 2021SaveLearn