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arXiv · 0812.4384

Measurement of Autler-Townes and Mollow transitions in a strongly driven superconducting qubit

M. Baur·S. Filipp·R. Bianchetti·J. M. Fink·M. Göppl·L. Steffen·P. J. Leek·A. Blais·A. Wallraff
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Abstract

We present spectroscopic measurements of the Autler-Townes doublet and the sidebands of the Mollow triplet in a driven superconducting qubit. The ground to first excited state transition of the qubit is strongly pumped while the resulting dressed qubit spectrum is probed with a weak tone. The corresponding transitions are detected using dispersive read-out of the qubit coupled off-resonantly to a microwave transmission line resonator. The observed frequencies of the Autler-Townes and Mollow spectral lines are in good agreement with a dispersive Jaynes-Cummings model taking into account higher excited qubit states and dispersive level shifts due to off-resonant drives.

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M. Baur, S. Filipp, R. Bianchetti, J. M. Fink, M. Göppl, L. Steffen, P. J. Leek, A. Blais, A. Wallraff. 2008-12-23. Measurement of Autler-Townes and Mollow transitions in a strongly driven superconducting qubit. https://doi.org/10.1103/physrevlett.102.243602

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