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Radio-Frequency Method for Investigation of Quantum Properties of Superconducting Structures

E. Il'ichev·A. Yu. Smirnov·M. Grajcar·A. Izmalkov·D. Born·N. Oukhanski·Th. Wagner·W. Krech·H. -G. Meyer·A. M. Zagoskin
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Abstract

We implement the impedance measurement technique (IMT) for characterization of interferometer-type superconducting qubits. In the framework of this method, the interferometer loop is inductively coupled to a high-quality tank circuit. We show that the IMT is a powerful tool to study a response of externally controlled two-level system to different types of excitations. Conclusive information about qubits is obtained from the read-out of the tank properties.

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E. Il'ichev, A. Yu. Smirnov, M. Grajcar, A. Izmalkov, D. Born, N. Oukhanski, Th. Wagner, W. Krech, H. -G. Meyer, A. M. Zagoskin. 2004-06-23. Radio-Frequency Method for Investigation of Quantum Properties of Superconducting Structures. https://doi.org/10.1063/1.1789933

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