Results 271 to 280 of about 29,739 (303)

Precision spectroscopy of cold strontium atoms, towards optical atomic clock

Bulletin of the Polish Academy of Sciences: Technical Sciences, 2012
Abstract This report concerns the experiment of precision spectroscopy of cold strontium atoms in the Polish National Laboratory of Atomic, Molecular and Optical Physics in Toruń. The system is composed of a Zeeman slower and magneto-optical traps (at 461 nm and 689 nm), a frequency comb, and a narrow-band laser locked to an ultra-stable optical ...
M. Bober, J. Zachorowski, W. Gawlik, P. Morzyński, M. Zawada, D. Lisak, A. Cygan, K. Bielska, M. Piwiński, R.S. Trawiński, R. Ciuryło, F. Ozimek, C. Radzewicz   +12 more
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Spectroscopy with cold and ultracold strontium atoms

2003 European Quantum Electronics Conference. EQEC 2003 (IEEE Cat No.03TH8665), 2003
Photoassociation spectroscopy is used to probe the ro-vibrational spectrum of the strontium dimer at the at the /sup 1/S/sub 0/ + /sup 3/P/sub 1/ - asymptote by measuring the trap loss depending on the frequency of a photoassociation laser red-detuned to the 1S/sub 0/-3P/sub 1/ transition.
T. Binnewies, P.E. Pottie, F. Riehle, U. Sterr   +3 more
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An optical lattice clock with strontium atoms

2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006
We report the preliminary operation of an optical lattice clock with Sr atoms. We describe a novel method for loading the lattice and report an optical resonance of width 260 Hz.
M. Fouche, R. Le Targat, A. Brusch, X. Baillard, P. Lemonde   +4 more
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Elastic Scattering Properties of Ultracold Strontium Atoms

Chinese Physics Letters, 2011
We investigate the elastic scattering properties of strontium atoms at ultracold temperatures. The scattering parameters, such as s-wave scattering lengths, effective ranges and p-wave scattering lengths, are calculated for all stable isotope combinations of Sr atoms by the quantal method and semiclassical method, respectively.
Ji-Cai Zhang, Zun-Lue Zhu, Yu-Fang Liu, Jin-Feng Sun   +3 more
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Superelastic electron scattering by metastable strontium atoms

Technical Physics, 2008
Superelastic electron scattering by metastable strontium atoms is experimentally studied using intersecting electron and atomic beams and an electron spectrometer. The energy dependence of the effective cross section of superelastic electron scattering in the energy range 0.15–2.0 eV has been obtained for the first time.
V. I. Marushka, I. I. Shafranyosh
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Secondary laser cooling of strontium-88 atoms

Journal of Experimental and Theoretical Physics, 2015
The secondary laser cooling of a cloud of strontium-88 atoms on the 1 S 0–3 P 1 (689 nm) intercombination transition captured into a magneto-optical trap has been demonstrated. We describe in detail the recapture of atoms from
S. A. Strelkin, K. Yu. Khabarova, A. A. Galyshev, O. I. Berdasov, A. Yu. Gribov, N. N. Kolachevsky, S. N. Slyusarev   +6 more
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Quantum computing with neutral strontium atoms

2023
In our project we aim to build a quantum co-processor as part of a hybrid quantum computer. This will be experimentally realized by trapping strontium-88 atoms in a 2D array of optical tweezers, generated by a spatial light modulator. As qubit states we plan to use the ground 1S0, and clock state 3P0 of the Sr atom.
van Herk, Rik A.H., Guo, Zhichao, Janse van Rensburg, Deon, Venderbosch, Marijn L., Knottnerus, Ivo, Urech, Alexander, Tseng, Yu Chic, Spreeuw, Robert, Schreck, Florian, Lous, Rianne S., Vredenbregt, Edgar J.D., Kokkelmans, Servaas J.J.M.F   +11 more
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Hybrid Quantum Computing with Strontium Atoms

2021
A hybrid quantum computer tailored for quantum chemistry applications will be constructed. The quantum co-processor will consist of two-dimensional arrays of ultracold Strontium-88 atoms in optical tweezers with multiple qubit operations realized using Rydberg states.
Janse van Rensburg, Deon, Knottnerus, Ivo, Urech, Alexander, Venderbosch, Marijn L., van Herk, Rik A.H., Spreeuw, Robert, Schreck, Florian, Vredenbregt, Edgar J.D., Kokkelmans, Servaas J.J.M.F   +8 more
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An optical frequency standard using strontium atoms

2003 European Quantum Electronics Conference. EQEC 2003 (IEEE Cat No.03TH8665), 2003
Sr atoms are cooled on the /sup 1/S/sub 0/ /spl rarr/ /sup 1/P/sub 1/ transition at 461 nm, which linewidth is 32 MHz. Atoms from a thermal beam are decelerated by a Zeeman slower before capture in a magneto-optical trap (MOT). The MOT is formed by three retro-reflected laser beams of a total power 17 mW and of a waist radius 1 cm.
A. Quessada, I. Courtillot, R.P. Kovacich, A. Brusch, D. Kolker, G.D. Rovera, A. Clairon, G. Santarelli, P. Lemonde   +8 more
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Elastic scattering of electrons by strontium and barium atoms

Physical Review A, 1994
Differential, total, and momentum transfer cross sections for the elastic scattering of low- and intermediate-energy (0.2--100 eV) electrons by strontium and barium atoms were calculated in the relativistic polarized orbital approximation. A static part of the projectile-target interaction potential was generated by solving the Dirac-Hartree-Fock (DHF)
, Szmytkowski, , Sienkiewicz
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