Probing strongly driven and strongly coupled superconducting qubit-resonator system
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2025
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| author | Ivakhnenko, Oleh V. Satrya, Christoforus Dimas Chang, Yu-Cheng Upadhyay, Rishabh Peltonen, Joonas T. Shevchenko, Sergey N. Nori, Franco Pekola, Jukka P. |
| author_facet | Ivakhnenko, Oleh V. Satrya, Christoforus Dimas Chang, Yu-Cheng Upadhyay, Rishabh Peltonen, Joonas T. Shevchenko, Sergey N. Nori, Franco Pekola, Jukka P. |
| contents | 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-Stückelberg-Majorana interferometry, because the strong coupling distorts the qubit energy levels. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_03188 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Probing strongly driven and strongly coupled superconducting qubit-resonator system Ivakhnenko, Oleh V. Satrya, Christoforus Dimas Chang, Yu-Cheng Upadhyay, Rishabh Peltonen, Joonas T. Shevchenko, Sergey N. Nori, Franco Pekola, Jukka P. Quantum Physics 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-Stückelberg-Majorana interferometry, because the strong coupling distorts the qubit energy levels. |
| title | Probing strongly driven and strongly coupled superconducting qubit-resonator system |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2508.03188 |