Rostock 2019 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 3: Quantum Information (Quantum Computing) I
Q 3.4: Vortrag
Montag, 11. März 2019, 11:30–11:45, S HS 001 Chemie
Multilayer ion trap technology for quantum simulation and quantum computation — •Amado Bautista-Salvador1,2, Hening Hahn1,2, Giorgio Zarantonello1,2, Jonathan Morgner1,2, Matthias Kohnen2, Martina Wahnschaffe2, and Christian Ospelkaus1,2 — 1Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover — 2Physikalisch-Technische-Bundesanstalt Braunschweig, Bundesallee 100, 38116 Braunschweig
We present a novel ion trap fabrication method enabling the realization of large-scale ion trap arrays for scalable quantum information processing and quantum simulation [1]. We benchmark the method by fabricating a multilayer surface-electrode ion trap with embedded 3D microwave circuitry for implementing entangling quantum logic gates. We demonstrate ion trapping and microwave control of the hyperfine states of a laser cooled 9Be+ ion held at a distance of 35 µm above the trap surface. We discuss the trap design, electromagnetic full-wave simulations and characterization of the multilayer ion trap using a single ion as a local near-field probe [2]. In this design the measured detrimental AC Zeeman shifts is three orders of magnitude less compared to previous traps [3]. The device presented here can be viewed as an entangling gate component in a scalable library for surface-electrode ion traps aimed for quantum logic operations.
[1] A. Bautista-Salvador et al., in preparation [2] H. Hahn et al., in preparation [3] M. Wahnschaffe et al., Appl. Phys. Lett. 110, 034103 (2017).