Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 39: Posters: Quantum Optics and Photonics III
Q 39.18: Poster
Wednesday, March 11, 2020, 16:30–18:30, Empore Lichthof
Rydberg excitation of trapped ions for quantum simulation and computation — •Justas Andrijauskas1,2, Jonas Vogel1, Arezoo Mokhberi1, and Ferdinand Schmidt-Kaler1,2 — 1Institut für Physik, Universität Mainz, D-55128 Mainz, Germany — 2Helmholtz-Institut Mainz, D-55128 Mainz, Germany
Trapped ions excited to Rydberg states combines high controllability of trapped ions with high polarisability and long lifetimes of Rydberg states[1,2]. We present the two step excitation of trapped 40Ca+ ions to Rydberg states, using laser systems at 213nm and 287nm wavelengths. Laser beams are configured in counter-propagating manner such that the line broadening due to the Doppler effect is mitigated. The ion trap is operated at 14.6 MHz drive frequency and features secular frequencies near 600, 1200, 1600 kHz. We also discuss our experimental results obtained by spectroscopy of S and D series in order to optimize the micromotion control, determine line shapes and quantum defects[3] and compare to theory predictions.
[1] Feldker et al., Phys. Rev. Lett. 115, 173001(2015)
[2] Higgins et al., Phys. Rev. Lett. 119, 220501 (2017)
[3] Mokhberi et al. J. Phys. B 52, 214001 (2019)