Erlangen 2018 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 42: Poster Session IIIb
A 42.18: Poster
Donnerstag, 8. März 2018, 16:15–18:15, Zelt Ost
Cold Rydberg ions for quantum-technology experiments — •Arezoo Mokhberi1, Jonas Vögel1, Justas Andrijauskas1,2, Patrick Bachor1,2, Georg Jacob1, Christian Gumbrich1,2, Jachen Walz1,2, and Ferdinand Schmidt-Kaler1 — 1Institut für Physik, Johannes Gutenberg Universität Mainz, D-55128, Germany — 2Helmholtz-Institut Mainz, D-55099, Germany
Cold ions confined in radiofrequency (RF) ion traps are among the most promising candidates for quantum information processing and quantum simulation. In these systems, exciting the ionic electron to high-laying Rydberg states offers a unique opportunity for observing novel effects arising from the interplay between the Coulomb interaction and their giant dipole moments. This offers a new router for investigating strongly correlated many-body quantum systems, for simulating complex systems and for the exploration of non-equilibrium dynamics in structural phase transitions and defect formations [1-3]. We have employed coherent VUV radiation at 122.04 nm for Rydberg excitation of calcium ions in a linear, segmented RF trap. The excitation to 52F, 53F, 66F and 22F states was observed and modelled [4,5]. Using sideband spectroscopy on the quadrupole qubit transition, we have characterized the micromotion effect on the line shape of Rydberg transitions.
References: [1] F. Schmidt-Kaler et al., NJP. 13, 075014 (2011). [2] M. Müller et al., NJP 10, 093009 (2008). [3] S. Ulm et al., Nat. comm. 4, 2290 (2013). [4] T. Feldker et al., PRL 115, 173001 (2015). [5] P. Bachor et al., JPB 49, 154004 (2016).