Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 13: Posters: Quantum Optics and Photonics I
Q 13.69: Poster
Monday, March 9, 2020, 16:30–18:30, Empore Lichthof
A fast multichannel arbitrary waveform generator for controlling quantum logic experiments based on trapped ion qubits — •Alexander Stahl1, Björn Lekitsch1, Janine Hilder1, Daniel Pijn1, Alexander Müller1, Daniel Wessel1, Matthias Romer2, Stefan Ulm2, Frank Ziesel2, Ferdinand Schmidt-Kaler1, and Ulrich Poschinger1 — 1Institut für Physik, Universität Mainz, Staudingerweg 7, 55128 Mainz, Germany — 2AKKA DSW GmbH, Magirus-Deutz-Straße 2, 89077 Ulm, Germany
Shuttling ions in segmented radiofrequency traps offers a route to a scalable platform for quantum information processing. We present ongoing work towards extending an existing 80-channel fast multichannel arbitrary waveform generator (mAWG) towards capabilities for quantum error correction. In particular, data transfer protocols, new sequence data format and execution control software and hardware modules are established, which allow for fully generalized branched sequences: Both laser-driven qubit manipulation and ion shuttling operations can be carried out conditioned on in-sequence measurement results. Here, it is crucial to keep processing latencies small as compared to other relevant timescales. The real-time architecture, based on a Zynq system-on-a-chip, includes in-system evaluation and processing of fluorescence measurement data and an interface to a commercial radiofrequency AWG for controlling laser pulses. The architecture also includes a new version of the analog output hardware with improved electrical noise characteristics. The device will be commercialized in collaboration with AKKA technologies.