SAMOP 2021 – wissenschaftliches Programm
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QI: Fachverband Quanteninformation
QI 6: Quantum Computing and Algorithms II
QI 6.6: Vortrag
Mittwoch, 22. September 2021, 12:30–12:45, H3
Microwave individual qubit addressing of 9Be+ in a two-ion crystal — •Hardik Mendpara1,2, Markus Duwe1,2, Nicolas Pulido1,2, Amado Bautista1,2, Giorgio Zarantonello3, and Christian Ospelkaus1,2 — 1Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover — 2PTB, Bundesallee 100,38116 Braunschweig — 3National Institute of Standards and Technology, Boulder, Colorado 80303
Single-qubit rotations and two-qubit entangling gates form a universal set of quantum operations capable of implementing any quantum algorithm. With multiple trapped ions, a key prerequisite for single-qubit rotations is the capability to reliably address individual qubits. Instead of the more wide-spread laser based approach, we implement quantum operations using microwaves. In this work, we report on microwave individual-ion addressing, and on the implementation of randomized benchmarking [1]. Together with the entangling gate, this enables controlled sequences of single- and two-qubit gates [2]. This makes it possible to perform benchmarking algorithms to better characterize the performance of two-qubit entangling gates [3,4].
[1] U. Warring et al., Phys. Rev. Lett. 110,173002 (2013)
[2] G. Zarantonello et al., Phys. Rev. Lett. 123, 260503 (2019)
[3] A. Erhard et al., Nat. Commun. 10, 5347 (2019)
[4] J. Gaebler et al., Phys. Rev. Lett. 109, 179902 (2012)