Investigation of two-photon 2s -> 1s decay in one-electron and one-muon ionsWe have studied the radiative decay of the 2s state of one-electron and one-muon ions, where the two-photon mechanism plays an important role. Due to the nuclear size corrections the radiative decay…V. A. Knyazeva, K. N. Lyashchenko, M. Zhang et al.·Apr 21, 2022SaveLearn
Multi-polariton control in attosecond transient absorption of autoionizing statesTunable attosecond transient absorption spectroscopy is an ideal tool for studying and manipulating autoionization dynamics in the continuum. We investigate near-resonant two-photon couplings between…S. Yanez-Pagans, C. Cariker, M. Shaikh et al.·Apr 20, 2022SaveLearn
Optical Atomic Clock aboard an Earth-orbiting Space Station (OACESS): Enhancing searches for physics beyond the standard model in spaceWe present a concept for a high-precision optical atomic clock (OAC) operating on an Earth-orbiting space station. This pathfinder science mission will compare the space-based OAC with one or more…Vladimir Schkolnik, Dmitry Budker, Oliver Fartmann et al.·Apr 20, 2022SaveLearn
A Rydberg hydrogen beam for studies of stimulated deexcitationWe present a Rydberg hydrogen beamline developed to commission techniques of stimulated deexcitation for application in antihydrogen experiments at CERN's Antiproton Decelerator. The stimulation of…Tim Wolz, Maxime Allemand, Daniel Comparat et al.·Apr 20, 2022SaveLearn
Polarization effects in the total rate of biharmonic ω + 3ω ionization of atomsThe total ionization rate of biharmonic (ω + 3ω) ionization is studied within the independent particle approximation and the third order perturbation theory. Particular attention is paid…J. Hofbrucker, S. Ramakrishna, A. V. Volotka et al.·Apr 20, 2022SaveLearn
Numerical solution to the time-independent Gross-Pitaevskii equationWe solve the time-independent Gross-Pitaevskii equation modeling the Bose-Einstein condensate trapped in an anistropic harmonic potential using a pseudospectral method. Numerically obtained values…Tsogbayar Tsednee, Banzragch Tsednee, Tsookhuu Khinayat·Apr 20, 2022SaveLearn
XUV ionization of the H2 molecule studied with attosecond angular streakingWe study orientation and two-center interference effects in attosecond time-resolved photoionization of the H2 molecule. Time resolution of XUV ionization of H2 is gained through the phase…Vladislav V. Serov, Anatoli S. Kheifets·Apr 19, 2022SaveLearn
Feshbach Spectroscopy of Cs Atom Pairs in Optical TweezersWe prepare pairs of 133Cs atoms in a single optical tweezer and perform Feshbach spectroscopy for collisions of atoms in the states (f=3, mf=3). We detect enhancements in pair loss using a…R V Brooks, A Guttridge, Matthew D Frye et al.·Apr 19, 2022SaveLearn
Near K-Edge Photoionization and Photoabsorption of Singly, Doubly, and Triply Charged Silicon IonsExperimental and theoretical results are presented for double, triple, and quadruple photoionization of Si+ and Si2+ ions and for double photoionization of Si3+ ions by a single photon.…S. Schippers, S. Stock, T. Buhr et al.·Apr 19, 2022SaveLearn
Effects of spin-exchange collisions on the fluctuation spectra of hot alkali-metal vaporsWe present a first-principles analysis of the noise spectra of alkali-metal-metal vapors in and out of the spin-exchange-relaxation-free (SERF) regime, and we predict non-intuitive features with a…K. Mouloudakis, G. Vasilakis, V. G. Lucivero et al.·Apr 19, 2022SaveLearn
High-resolution spectroscopy and single-photon Rydberg excitation of reconfigurable ytterbium atom tweezer arrays utilizing a metastable stateWe present an experimental system for Rydberg tweezer arrays with ytterbium (Yb) atoms featuring internal state manipulation between the ground 1S0 and the metastable 3P2 states, and…Daichi Okuno, Yuma Nakamura, Toshi Kusano et al.·Apr 17, 2022SaveLearn
Two-path interference in the resonance-enhanced few-photon ionization of atomsWe investigate the resonance-enhanced few-photon ionization of atomic lithium by linearly polarized light whose frequency is tuned near the 2s-2p transition. Considering the direction of light…B. P. Acharya, S. Dubey, K. L. Romans et al.·Apr 16, 2022SaveLearn
Magneto-optical trap of a Group III atomWe realize the first magneto-optical trap of an atom in main group III of the Periodic Table. Our atom of choice (indium) does not have a transition out of its ground state suitable for laser…Xianquan Yu, Jinchao Mo, Tiangao Lu et al.·Apr 15, 2022SaveLearn
Fragmentation of the 4He2 dimer by relativistic highly charged projectiles in collisions with small kinetic energy releaseWe study theoretically the fragmentation of the helium dimer, 4He2, into singly charged ions in collisions with relativistic highly-charged projectiles. We discuss the main mechanisms driving…B. Najjari, S. F. Zhang, X. Ma et al.·Apr 15, 2022SaveLearn
Fluorescence calorimetry of an ion crystalMotivated by the challenge of identifying intruder ions in a cold ion crystal, we investigate calorimetry from emitted fluorescence light. Under continuous Doppler cooling, the ion crystal reaches a…Marvin Gajewski, Wenbing Li, Sebastian Wolf et al.·Apr 13, 2022SaveLearn
Electrostatic focusing of cold and heavy molecules for the ACME electron EDM searchThe current best upper limit for electron electric dipole moment (EDM), |de|<1.1×10-29\,e·cm (90% confidence), was set by the ACME collaboration in 2018. The ACME experiment uses a…Xing Wu, Peiran Hu, Zhen Han et al.·Apr 12, 2022SaveLearn
Measurement of the H31 Radiative Lifetime in ThOThe best limit on the electron electric dipole moment (eEDM) comes from the ACME II experiment [Nature 562 (2018), 355-360] which probes physics beyond the Standard Model at energy scales…Daniel G. Ang, Cole Meisenhelder, Cristian D. Panda et al.·Apr 12, 2022SaveLearn
High-precision solution of the Dirac Equation for the hydrogen molecular ion by an iterative methodThe Dirac equation for H2+ is solved numerically using an iterative method proposed by Kutzelnigg [Z. Phys. 11, 15 (1989]. The four-component wavefunction is expanded in a newly introduced…Hugo D. Nogueira, Vladimir I. Korobov, Jean-Philippe Karr·Apr 12, 2022SaveLearn
Enriching the quantum toolbox of ultracold molecules with Rydberg atomsWe describe a quantum information architecture consisting of a hybrid array of optically-trapped molecules and atoms. This design leverages the large transition dipole moments of Rydberg atoms to…Kenneth Wang, Conner P. Williams, Lewis R. B. Picard et al.·Apr 11, 2022SaveLearn
Enhanced high-order harmonics through periodicity breaks: from backscattering to impurity statesBackscattering of delocalized electrons has been recently established [Phys. Rev. A 105, L041101 (2022)] as a mechanism to enhance high-order harmonic generation (HHG) in periodic systems with broken…Chuan Yu, Ulf Saalmann, Jan M. Rost·Apr 11, 2022SaveLearn
Heading-error-free optical atomic magnetometry in the Earth-field rangeAlkali-metal atomic magnetometry is widely used due to its high sensitivity and cryogen-free operation. However, when operating in geomagnetic field, it suffers from heading errors originating from…Rui Zhang, Dimitra Kanta, Arne Wickenbrock et al.·Apr 11, 2022SaveLearn
High-Performance Microwave Frequency Standard Based on Sympathetically Cooled IonsThe ion microwave frequency standard is a candidate for the next generation of microwave frequency standard with the potential for very wide applications. The Dick effect and second-order Doppler…Hao-Ran Qin, Sheng-Nan Miao, Ji-Ze Han et al.·Apr 11, 2022SaveLearn
Comment on "Measuring the enhancement factor of the hyperpolarized Xe in nuclear magnetic resonance gyroscopes"Z. Xu, et al. [Phys. Rev. A 103, 023114 (2021)], have reported a measurement for the enhancement factor , which characterizes the overlap of the electron wavefunction with the noble-gas…B. Saam·Apr 7, 2022SaveLearn
Comparison of two multiplexed portable cold-atom vacuum standardsWe compare the vacuum measured by two portable cold-atom vacuum standards (pCAVS) based on ultracold 7Li atoms. The pCAVS are quantum-based standards that use a priori scattering calculations to…Lucas H. Ehinger, Bishnu P. Acharya, Daniel S. Barker et al.·Apr 7, 2022SaveLearn
Experimental Investigation of the Hyperfine Structure of Tm I with Fourier Transform Spectroscopy Part B: in the NIR wavelength range from 700 nm to 2250 nmIn this study, we investigated the hyperfine structure of 43 spectral lines of atomic thulium. We analyzed Fourier-transform spectra in the wavelength range from 700 nm to 2250 nm, which corresponds…Taha Yusuf Kebapcı, Sami Sert, Şeyma Parlatan et al.·Apr 5, 2022SaveLearn