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QI: Fachverband Quanteninformation

QI 23: Poster II (joint session QI/Q)

QI 23.28: Poster

Mittwoch, 8. März 2023, 16:30–19:00, Empore Lichthof

Integrated optics for scaling up the performace of ion based quantum computers — •Steffen Sauer^{1, 2}, Carl-Frederik Grimpe³, Anastasiia Sorokina^{1, 2}, Guochun Du³, Pascal Gehrmann^{1, 2}, Tunahan Gök^{6, 7}, Radhakant Singh^{6, 7}, Pragya Sah^{6, 7}, Babita Negi⁷, Maxim Lipkin^{6, 7}, Stephan Suckow⁶, Elena Jordan³, Tanja Mehlstäubler^{3, 4, 5}, and Stefanie Kroker^{1, 2, 3} — ¹Institut für Halbleitertechnik, Technische Universität Braunschweig, Braunschweig, Germany — ²Laboratory for Emerging Nanometrology, Braunschweig, Germany — ³Physikalisch-Technische Bundesanstalt, Braunschweig, Germany — ⁴Institut für Quantenoptik, Leibniz Universität Hannover, Hannover, Germany — ⁵Laboratorium für Nano- und Quantenengineering, Hannover, Germany — ⁶AMO GmbH, Advanced Microelectronic Center Aachen, Aachen, Germany — ⁷Chair of Electronic Devices, RWTH Aachen University, Aachen, Germany

Ions trapped on chips are one of the most promising approaches for quantum computers. The approach offers the advantage of high fidelity, long coherence time and scalability. In addition, the ion physics and trap chip technology are well understood. The key component for the scalability of this quantum computers are integrated optical devices, such as waveguides to transport light or grating outcouplers to emit *m beams to the ions. In the joint project ATIQ, this approach is being pursued with the aim of realising a quantum computer with 40 qubits (ions). We present simulations of integrated optical components, their applications on chips and our characterization setups.