title: Measurement of Autler-Townes and Mollow transitions in a strongly driven superconducting qubit.
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 readout 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.
authors: Department of Physics, ETH Zurich, CH-8093 Zurich, Switzerland.
authors: M
authors: M
authors: Baur
authors: S
authors: S
authors: Filipp
authors: R
authors: R
authors: Bianchetti
authors: J M
authors: JM
authors: Fink
authors: M
authors: M
authors: Göppl
authors: L
authors: L
authors: Steffen
authors: P J
authors: PJ
authors: Leek
authors: A
authors: A
authors: Blais
authors: A
authors: A
authors: Wallraff