249th RQC Seminar

  • 講演者

    Prof. Jens Koch
    ( Department of Physics and Astronomy, Northwestern University )

  • 日程

    2025年12月22日(月), 13:00 - 14:00 (1:00p.m.-2:00p.m)

  • 開催場所

    ハイブリッド（Zoom,
    Room S507, 5F, Chemistry and Materials Physics Building, Wako Campus / 物質科学研究棟5階 S507 (S51))

  • 講演タイトル

    Bottlenecks in the Parametric Control of Superconducting Quantum Processors

  • お問合せ

    yasunobu.nakamura[at]riken.jp

講演概要
Quantum processors based on superconducting qubits increasingly rely on strong microwave drives to enable fast entangling gates, high-fidelity readout, and autonomous state stabilization.In my talk, I will present experimental data and numerical predictions showing that these drivescan, however, push qubit systems across a critical threshold beyond which excitations proliferate and impede coherent control. I will discuss how branch analysis and Floquet spectra can be used as valuable (though imperfect) diagnostics in the design of quantum processors.

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