Probing strongly driven and strongly coupled superconducting qubit-resonator system

• URL: http://arxiv.org/abs/2508.03188v1
• Date: Tue, 05 Aug 2025 07:53:24 GMT
• Title: Probing strongly driven and strongly coupled superconducting qubit-resonator system
• Authors: Oleh V. Ivakhnenko, Christoforus Dimas Satrya, Yu-Cheng Chang, Rishabh Upadhyay, Joonas T. Peltonen, Sergey N. Shevchenko, Franco Nori, Jukka P. Pekola,
• Abstract summary: The measured system was a superconducting flux qubit coupled to a coplanar-waveguide resonator.<n>This hybrid qubit-resonator system was driven by a magnetic flux and probed with a weak probe signal through the feedline.
• Score: 3.297108023909785
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We investigated a strongly driven qubit strongly connected to a quantum resonator. The measured system was a superconducting flux qubit coupled to a coplanar-waveguide resonator which is weakly coupled to a probing feedline. This hybrid qubit-resonator system was driven by a magnetic flux and probed with a weak probe signal through the feedline. We observed and theoretically described the quantum interference effects, deviating from the usual single-qubit Landau-Zener-St\"{u}ckelberg-Majorana interferometry, because the strong coupling distorts the qubit energy levels.

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