Observation of Floquet States in a Strongly Driven Artificial Atom
Observation of Floquet States in a Strongly Driven Artificial Atom
We present experiments on the driven dynamics of a two-level superconducting artificial atom. The driving strength reaches 4.78 GHz, significantly exceeding the transition frequency of 2.288 GHz. The observed dynamics is described in terms of quasienergies and quasienergy states, in agreement with Floquet theory. In addition, we observe the role …