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Q: Fachverband Quantenoptik und Photonik
Q 66: Poster – Quantum Technologies III
Q 66.27: Poster
Thursday, March 5, 2026, 17:00–19:00, Philo 2. OG
Recent results and ongoing developments in microwave-driven trapped-ion quantum computing experiments — •Erik Dunkel1, Najwa Al-Zaki1, Tobias Pootz1, David Stuhrmann1, Radhika Goyal1, Sascha Agne2, Celeste Torkzaban1, and Christian Ospelkaus1,2 — 1Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover — 2Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig
Trapped ions are a highly promising platform for both quantum computing and quantum simulation. We utilize surface-electrode ion traps with integrated microwave conductors to trap ions and drive qubit rotations and entangling gates by manipulating the internal and motional states of the ions.
Our qubit transitions for 9Be+ and 43Ca+ feature first-order magnetic field insensitive hyperfine transitions. We will share results of the simultaneous trapping of different ion species in our cryogenic apparatuses, which is an essential step towards implementing sympathetic cooling. In addition, we will discuss the steps made towards implementing a junction-style trap chip, so that we can transport ions between storage, quantum logic and detection zones, along with our plan for testing and characterizing a waveguide chip in a second apparatus.
Keywords: surface electrode ion traps; microwave-based gates; sympathetic cooling; quantum computing; cryogenic