Observation of Floquet States in a Strongly Driven Artificial Atom

Chunqing Deng, Jean Luc Orgiazzi, Feiruo Shen, Sahel Ashhab, Adrian Lupascu

Research output: Contribution to journalArticle

50 Citations (Scopus)


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 of pulse shaping in the dynamics, as determined by nonadiabatic transitions between Floquet states, and we implement subnanosecond single-qubit operations. These results pave the way to quantum control using strong driving with applications in quantum technologies.

Original languageEnglish
Article number133601
JournalPhysical Review Letters
Issue number3
Publication statusPublished - 24 Sep 2015


ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this