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Q: Fachverband Quantenoptik und Photonik
Q 13: Posters: Quantum Optics and Photonics I
Q 13.66: Poster
Montag, 9. März 2020, 16:30–18:30, Empore Lichthof
Operation of a microfabricated 2D ion trap array — •Marco Valentini1, Silke Auchter1,2, Philip Holz1, Gerald Stocker1,2, Kirill Lakhmanskiy1, Clemens Rössler2, Elmar Aschauer2, Yves Colombe1, and Rainer Blatt1,3 — 1Institut für Experimentalphysik, University of Innsbruck, Austria — 2Infineon Technologies Austria AG, Villach, Austria — 3Institut für Quantenoptik und Quanteninformation, 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 11 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 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 ion heating rates in several trapping sites, and report the observation of AC B field-induced shifts in the ions' energy levels. The design of the trap array allows for tuning of the inter-ion distance across the lattice, which we will use to demonstrate motional coupling of ions in neighboring sites.