2015/08/31 by Chunqing Deng, Jean-Luc Orgiazzi, Feiruo Shen +2
Physics and Astronomy · #quant-ph #cond-mat.mes-hall #physics.atom-ph
paper · pdf · doi:10.1103/physrevlett.115.133601
published as Phys. Rev. Lett. 115, 133601 (2015)
arxiv created 2015/10/08 · arxiv updated 2015/10/09
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 non-adiabatic 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.