Freiburg 2024 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 60: Quantum Computing and Simulation I

Q 60.5: Talk

Friday, March 15, 2024, 12:00–12:15, Aula

Trapped-ion electric field gates — •Rima X. Schüssler, Matteo Mazzanti, Clara Robalo Pereira, Nella Diepeveen, Louis Gallagher, Zeger Ackerman, Arghavan Safavi-Naini, and Rene Gerritsma — University of Amsterdam, Amsterdam, The Netherlands

Trapped ions are an optimal platform for quantum computation. We plan to combine ions with optical microtraps and oscillating electric fields for a new type of two-qubit geometric phase gate, shown theoretically in [1]. This gate has the advantage that it does not require ground state cooling of the ions. Additionally, the ions involved in the gate can be freely chosen by aligning the tweezers on them. As the electric field couples to all ions equally, the gate works even in very long ion chains.

In our experiment, we use an equidistant ion chain of ¹⁷¹Yb⁺ ions in a segmented 3D Paul trap. The tweezer shape are produced by a spatial light modulator, while single ion addressing is done by an acousto optical deflector.

The current experimental status as well as steps taken to align the tweezers on the ions will be presented.

[1] Mazzanti, M., Schüssler, R.X., Espinoza, J.A., Wu, Z., Gerritsma, R. and Safavi-Naini, A., 2021. Trapped Ion Quantum Computing Using Optical Tweezers and Electric Fields. Physical Review Letters, 127(26), 260502

Keywords: Trapped ions; Optical tweezers