SAMOP 2023 – scientific programme
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QI: Fachverband Quanteninformation
QI 23: Poster II (joint session QI/Q)
QI 23.32: Poster
Wednesday, March 8, 2023, 16:30–19:00, Empore Lichthof
Towards Optically Integrated Trapped Ion Quantum Computing — •Marco Schmauser1, Philipp Schindler1, Thomas Monz1, Marco Valentini1, Clemens Rössler2, Klemens Schüppert2, Bernhard Lamprecht3, and Rainer Blatt1,4 — 1Universität Innsbruck, Innsbruck, Austria — 2Infineon Technologies Austria AG, Villach, Austria — 3Joanneum Research, Weiz, Austria — 4Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften
Trapped ion quantum computers are known to be large and complex experiments. One of the reasons for this is that light guidance between lasers and ions is done mainly by free-beam optics, which means that the overall system requires a lot of space and is susceptible to drifts and vibrations. The only way to make such a system compact and scalable is to increasingly integrate functionality, in this specific case optical elements, from external components directly into the ion trap. To solve this problem, a method has been developed to write single-mode and polarization-maintaining waveguides directly into quartz glass using ultrashort laser pulses. These light guides can be tuned to a specific wavelength, ranging from UV to near infrared. The next step is to realize an ion trap with such integrated waveguides. In this context, the approach of a microstructured trap is pursued, which allows for a scalable trap architecture and is compatible with industrial production. In parallel, an integrated cryogenic quantum computing system is being built to enable fast trap changes and additionally investigate the light delivery to the trap chip.