Jian Li, G. S. Paraoanu, Katarina Cicak, Fabio Altomare, Jae I. Park, Raymond W. Simmonds, Mika A. Sillanpaa, Pertti J. Hakonen
We present an experimental investigation of the time evolution of Autler-Townes splitting in a superconducting phase qubit. A three-level model that includes independently determined parameters for relaxation and dephasing gives excellent agreement with the experiment, and indicates that the qubit can act as an ON/OFF switch for the reflection of photons from an applied probe microwave tone. The control of the switch is achieved through an auxiliary microwave tone resonantly coupled to the second transition of the device. The ON state is realized when the control tone is sufficiently strong to generate an Autler-Townes doublet, preventing the absorbtion of the probe tone.
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http://arxiv.org/abs/1103.2631
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