Freiburg 2024 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 38: Trapped Ions (joint session Q/A)
A 38.5: Vortrag
Freitag, 15. März 2024, 12:15–12:30, HS 1199
Microfabrication of surface ion traps for operation with Strontium Rydberg ions — •Simon Schey1,2, Michael Pfeifer1,3, Marion Mallweger2, Natalia Kuk2, Ivo Straka2, Clemens Rössler1, Yves Colombe1, and Markus Hennrich2 — 1Infineon Technologies Austria AG, Villach, Austria — 2Stockholm University, Stockholm, Sweden — 3University of Innsbruck, Innsbruck, Austria
Recently, using Rydberg-states for gate operation in trapped ions has been shown to greatly reduce two qubit gate times down to 700ns [1]. Those experiments were performed in a macroscopic Paul trap at room temperature. We propose to perform similar experiments but in a cryogenic environment as well as on a of surface ion trap chip that is industrially microfabricated at Infineon Technologies [2,3]. This will prove further scalability of this gate scheme.
As UV-Lasers are needed for the Rydberg gate operation, we discuss material and design choices for making our ion trap resilient against radiation down to a wavelength of around 240nm and show successful microfabrication of an ion trap on a sapphire substrate.
[1] Chi Zhang et al., Nature 580, 345-349 (2020)
[2] Ph. Holz et al., Adv. Quantum Technol. 3, 2000031 (2020)
[3] S. Auchter et al., Quantum Sci. Technol. 7, 035015 (2022)
Keywords: ion trap; rydberg ions; 2 qubit gate; scalability; microfabrication