Play building blocks on population distribution of multilevel superconducting flux qubit with quantum interference

摘要

Recent experiments on Landau-Zener interference in multilevel superconductingflux qubits revealed various interesting characteristics, which have beenstudied theoretically in our recent work by simply using rate equation method[PRB 79, 094529, (2009)]. In this note we extend this method to the same systembut with larger driving amplitude and higher driving frequency. The resultsshow various anomalous characteristics, some of which have been observed in arecent work.