Freiburg 2024 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 60: Quantum Computing and Simulation I
Q 60.2: Vortrag
Freitag, 15. März 2024, 11:15–11:30, Aula
Fast, high-fidelity gates on trapped-ion qubits at Oxford Ionics — Clemens Löschnauer1, Amy Hughes1, Raghavendra Srinivas1, Jacopo Mosca Toba1, Marius Weber1, Maciej Malinowski1, Roland Matt1, •Steven King1, Clemens Matthiesen1, Thomas Harty1, and Chris Ballance1,2 — 1Oxford Ionics, Oxford, UK — 2Department of Physics, University of Oxford, Oxford, UK
Electronic control of trapped-ion qubits using oscillating magnetic field gradients has delivered some of the highest-fidelity quantum gates ever reported [1, 2]. However, two-qubit entangling operations using this method are typically slower than laser-based gates, limiting overall computing speeds. We demonstrate high-fidelity two-qubit entangling gates with a duration of 100 µs using a chip trap with integrated microwave antenna, thereby reaching the typical speed of laser-based gates in a highly scalable architecture.
[1] T. P. Harty et al., Phys. Rev. Lett. 117, 140501 (2016)
[2] R. Srinivas et al., Nature 597, pp 209-213 (2021)
Keywords: Quantum computing; Trapped ion; Laser-free gate; Qubit; Microwave