SAMOP 2023 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 43: QI Poster II (joint session QI/Q)
Q 43.16: Poster
Wednesday, March 8, 2023, 16:30–19:00, Empore Lichthof
Operation of a microfabricated 2D trap array — •Marco Valentini1, Matthias Dietl1,2, Silke Auchter1,2, Michael Pfeifer1,2, Philip Holz3, Clemens Rössler2, Thomas Monz1,3, Philipp Schindler1, and Rainer Blatt1,3,4 — 1Institut für Experimentalphysik, Universität Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria — 2Infineon Technologies Austria AG, Villach, Austria — 3Alpine Quantum Technologies GmbH, 6020 Innsbruck, Austria — 4Institute for Quantum Optics and Quantum Information, 6020 Innsbruck, Austria
We investigate scalable surface ion traps for quantum simulation and quantum computing. We have developed a microfabricated surface trap consisting of two parallel contiguous linear trap arrays with 9 trapping sites each. An interconnected three-metal-layer structure provides addressing of the DC electrodes across the chip and shielding of the silicon substrate. The trap fabrication is carried out by Infineon Technologies in an industrial facility, which allows for complex electrode designs and ensures high process reproducibility. We demonstrate trapping and shuttling of multiple ions in the trap array, and form square and triangular ion-lattice configurations with up to six ions. We characterize stray electric fields and measure ion heating rates between 131(13) and 470(50) ph/s in several trapping sites. Furthermore, we engineered our setup to control independently the RF voltage in between the two linear trap arrays, and we will make use of it to demonstrate motional coupling of ions across the lattice.