Nuclear polarizability effects in 3He+ hyperfine splittingThe nuclear polarizability effects in hyperfine splitting of light atomic systems are not well known. The only system for which they were previously calculated is the hydrogen atom, where these…Vojtěch Patkóš, Vladimir A. Yerokhin, Krzysztof Pachucki·Mar 23, 2023SaveLearn
Ultra-fast detection of the center frequency of a spectral line from amplitude-weighted averageSpectroscopy methods often require calculating the central frequency of a resonance line, that is usually implemented by finding a best fit to the spectrum by a line-shape function. Such an iterative…Ilja Fescenko·Mar 22, 2023SaveLearn
Use of vector polarizability to manipulate alkali-metal atomsWe review a few ideas and experiments that our laboratory at Korea University has proposed and carried out to use vector polarizability β to manipulate alkali-metal atoms. β comes from…D. Cho·Mar 22, 2023SaveLearn
Ultrafast artificial intelligence: Machine learning with atomic-scale quantum systemsWe train a model atom to recognize hand-written digits between 0 and 9, employing intense light--matter interaction as a computational resource. For training, individual images of hand-written digits…Thomas Pfeifer, Matthias Wollenhaupt, Manfred Lein·Mar 21, 2023SaveLearn
Spin-motion coupling in a circular Rydberg state quantum simulator: case of two atomsRydberg atoms are remarkable tools for the quantum simulation of spin arrays. Circular Rydberg atoms open the way to simulations over very long time scales, using a combination of laser trapping of…Paul Méhaignerie, Clément Sayrin, Jean-Michel Raimond et al.·Mar 21, 2023SaveLearn
A large-momentum-transfer matter-wave interferometer to measure the effect of gravity on positroniumThis paper reports the study of a new interferometric configuration to measure the effect of gravity on positronium. A Mach-Zehnder matter-wave interferometer has been designed to operate with…G. Vinelli, F. Castelli, R. Ferragut et al.·Mar 21, 2023SaveLearn
Observation of the 4f146s2~1S0- 4f135d6s2(J=2) clock transition at 431 nm in 171YbWe report on the observation of the 4f146s2~1S0- 4f135d6s2(J=2) transition at 431 nm in 171Yb by depleting atoms in a magneto-optical trap formed by the 6s2~1S0-6s6p~3P1…Akio Kawasaki, Takumi Kobayashi, Akiko Nishiyama et al.·Mar 21, 2023SaveLearn
A chip-scale atomic beam clockAtomic beams are a longstanding technology for atom-based sensors and clocks with widespread use in commercial frequency standards. Here, we report the demonstration a chip-scale microwave atomic…Gabriela D. Martinez, Chao Li, Alexander Staron et al.·Mar 20, 2023SaveLearn
Ab initio calculation of the spectrum of Feshbach resonances in NaLi + Na collisionsWe present a combined experimental and theoretical study of the spectrum of magnetically tunable Feshbach resonances in NaLi (a3+) + Na collisions. In the accompanying paper, we observe…Tijs Karman, Marcin Gronowski, Michal Tomza et al.·Mar 20, 2023SaveLearn
Evolution of the number and temperature of the remaining cold atoms in CW-laser photoionization of laser-cooled 87Rb atomsBased on the Rb+-Rb hybrid trap, we investigate the effect of ion-atom elastic collisions on the number and temperature of the remaining atoms. We measured the remaining atomic number and…Fei Wang, Feng-Dong Jia, Wei-Chen Liang et al.·Mar 18, 2023SaveLearn
Generation of cold polyatomic cations by cascade reactive two-body ion-atom collisionsPolyatomic cations 87RbM+ (M = 2, 3,…) have been produced by cascade two-body ion-atom reactive collisions in the two-step CW-laser photoionization of laser-cooled 87Rb atoms…Wei-Chen Liang, Feng-Dong Jia, Fei Wang et al.·Mar 18, 2023SaveLearn
Bose-Einstein condensate as a diagnostic tool for an optical lattice formed by 1064 nm laser lightRecently, the thulium atom has been cooled down to the temperature of Bose-Einstein condensation. While the condensate of the thulium atom has a lot of applications in quantum simulations and other…V. V. Tsyganok, D. A. Pershin, V. A. Khlebnikov et al.·Mar 17, 2023SaveLearn
Electric field analysis in a cold-ion source using Stark spectroscopy of Rydberg atomsWe analyze electric fields in ion sources generated by quasi-continuous photo-ionization of cold Rb atoms trapped in the focal spot of a near-concentric, in-vacuum cavity for 1064-nm laser light. Ion…Alisher Duspayev, Georg Raithel·Mar 17, 2023SaveLearn
Observation of an Inner-Shell Orbital Clock Transition in Neutral Ytterbium AtomsWe observe a weakly allowed optical transition of atomic ytterbium from the ground state to the metastable state 4f135d6s2 \: (J=2) for all five bosonic and two fermionic isotopes with resolved…Taiki Ishiyama, Koki Ono, Tetsushi Takano et al.·Mar 17, 2023SaveLearn
Blackbody thermalization and vibrational lifetimes of trapped polyatomic moleculesWe study the internal state dynamics of optically trapped polyatomic molecules subject to room temperature blackbody radiation. Using rate equations that account for radiative decay and blackbody…Nathaniel B. Vilas, Christian Hallas, Loïc Anderegg et al.·Mar 16, 2023SaveLearn
Ab initio spectroscopic studies of AlF and AlCl moleculesIn this work, we report results from our extensive spectroscopic study on AlF and AlCl molecules, keeping in mind potential laboratory as well as astrophysical applications. We carry out detailed…R. Bala, V. S. Prasannaa, D. Chakravarti et al.·Mar 15, 2023SaveLearn
Schroedinger equation on a generic radial gridIn this note, we discuss the choice of radial grid in the numerical resolution of the Schroedinger equation. We detail the transformation of the equation resulting from a change of variable and…Christopher Bowen, Jean-Christophe Pain·Mar 15, 2023SaveLearn
Intercombination line frequencies in 171Yb validated with the clock transitionWe have carried absolute frequency measurements of the (6s2)\,1S0 - (6s6p)\,3P1 transition in 171Yb (the intercombination line), where the spin-1/2 isotope yields two…Daniel M. Jones, Frank van Kann, John J. McFerran·Mar 15, 2023SaveLearn
Photoionization from the ground and excited vibrational states of H+2 and its deuterated isotopologuesPhotoionization cross sections and rate coefficients have been calculated for all bound vibrational levels of the 1sσg state of H2+, HD+, and D2+. The…Adam Singor, Liam H. Scarlett, Mark C. Zammit et al.·Mar 15, 2023SaveLearn
Experimental determination of ruthenium L-shell fluorescence yields and Coster-Kronig transition probabilitiesThe L-shell fluorescence yields and the Coster-Kronig factors of ruthenium (and the corresponding uncertainty) were determined for the first time experimentally by applying radiometrically calibrated…Nils Wauschkuhn, Katja Frenzel, Burkhard Beckhoff et al.·Mar 14, 2023SaveLearn
Multiple-core-hole resonance spectroscopy with ultraintense X-ray pulsesUnderstanding the interaction of intense, femtosecond X-ray pulses with heavy atoms is crucial for gaining insights into the structure and dynamics of matter. One key aspect of nonlinear light-matter…Aljoscha Rörig, Sang-Kil Son, Tommaso Mazza et al.·Mar 14, 2023SaveLearn
Measurement of hyperfine structure and the Zemach radius in 6Li+ using optical Ramsey techniqueWe investigate the 2\,3\!S1--2\,3\!PJ (J = 0, 1, 2) transitions in 6Li+ using the optical Ramsey technique and achieve the most precise values of the hyperfine splittings of the…Wei Sun, Pei-Pei Zhang, Peng-peng Zhou et al.·Mar 14, 2023SaveLearn
Engineering long-range molecular potentials by external driveWe report the engineering of molecular potentials at large interatomic distances. The molecular states are generated by off-resonant optical coupling to a highly excited, long-range Rydberg molecular…Tanita Klas, Jana Bender, Patrick Mischke et al.·Mar 14, 2023SaveLearn
Sticking lifetime of ultracold CaF molecules in triplet interactionsA six-dimensional potential energy surface is constructed for the spin-polarized triplet state of CaF-CaF by ab initio calculations at the CCSD(T) level of theory, followed by Gaussian…Dibyendu Sardar, John L. Bohn·Mar 14, 2023SaveLearn
Towards a transportable Ca+ optical clock with a systematic uncertainty of 4.8× 10-18We present a compact, long-term nearly continuous operation of a room-temperature Ca+ optical clock setup towards a transportable clock, achieving an overall systematic uncertainty of $4.8×…Mengyan Zeng, Yao Huang, Baolin Zhang et al.·Mar 14, 2023SaveLearn