Integrated 9Be+ multi-qubit gate device for the ion-trap quantum computer

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Hahn, H.; Zarantonello, G.; Schulte, M.; Bautista-Salvador, A.; Hammerer, K. et al.: Integrated 9Be+ multi-qubit gate device for the ion-trap quantum computer. In: npj Quantum Information 5 (2019), Nr. 1, 70. DOI:

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Sum total of downloads: 111

We demonstrate the experimental realization of a two-qubit Mølmer–Sørensen gate on a magnetic field-insensitive hyperfine transition in 9Be+ ions using microwave near-fields emitted by a single microwave conductor embedded in a surface-electrode ion trap. The design of the conductor was optimized to produce a high oscillating magnetic field gradient at the ion position. The measured gate fidelity is determined to be 98.2 ± 1.2% and is limited by technical imperfections, as is confirmed by a comprehensive numerical error analysis. The conductor design can potentially simplify the implementation of multi-qubit gates and represents a self-contained, scalable module for entangling gates within the quantum CCD architecture for an ion-trap quantum computer.
License of this version: CC BY 4.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2019
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 68 61.26%
2 image of flag of United States United States 19 17.12%
3 image of flag of China China 7 6.31%
4 image of flag of Netherlands Netherlands 2 1.80%
5 image of flag of United Kingdom United Kingdom 2 1.80%
6 image of flag of Austria Austria 2 1.80%
7 image of flag of Taiwan Taiwan 1 0.90%
8 image of flag of Russian Federation Russian Federation 1 0.90%
9 image of flag of Portugal Portugal 1 0.90%
10 image of flag of Japan Japan 1 0.90%
    other countries 7 6.31%

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