Fast quantum control of cavities using an improved protocol without coherent 
errors

Landgraf, Jonas; Flühmann, Christa; Fösel, Thomas; Marquardt, Florian; Schoelkopf, Robert J.

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Fast quantum control of cavities using an improved protocol without coherent errors

MPG-Autoren

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Landgraf, Jonas
Marquardt Division, Max Planck Institute for the Science of Light, Max Planck Society;
University of Bayreuth;
Friedrich-Alexander-Universität Erlangen-Nürnberg, External Organizations;

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Fösel, Thomas
Marquardt Division, Max Planck Institute for the Science of Light, Max Planck Society;
Friedrich-Alexander-Universität Erlangen-Nürnberg, External Organizations;

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Marquardt, Florian
Marquardt Division, Max Planck Institute for the Science of Light, Max Planck Society;
Friedrich-Alexander-Universität Erlangen-Nürnberg, External Organizations;

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Zitation

Landgraf, J., Flühmann, C., Fösel, T., Marquardt, F., & Schoelkopf, R. J. (2023). Fast quantum control of cavities using an improved protocol without coherent errors. arXiv 2310.10498.

Zitierlink: https://hdl.handle.net/21.11116/0000-000D-D892-A

Zusammenfassung

The selective number-dependent arbitrary phase (SNAP) gates form a powerful class of quantum gates, imparting arbitrarily chosen phases to the Fock modes of a cavity. However, for short pulses, coherent errors limit the performance. Here we demonstrate in theory and experiment that such errors can be completely suppressed, provided that the pulse times exceed a specific limit. The resulting shorter gate times also reduce incoherent errors. Our approach needs only a small number of frequency components, the resulting pulses can be interpreted easily, and it is compatible with fault-tolerant schemes.