Stark effect and generalized Bloch-Siegert shift in a strongly driven two-level system
Related Experiment Video
Updated: Jun 5, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
Published on: August 2, 2019
Jani Tuorila1, Matti Silveri, Mika Sillanpää
1Department of Physics, University of Oulu, FI-90014, Finland.
Abstract:
A superconducting qubit was driven in an ultrastrong fashion by an oscillatory microwave field, which was created by coupling via the nonlinear Josephson energy. The observed Stark shifts of the "atomic" levels are so pronounced that corrections even beyond the lowest-order Bloch-Siegert shift are needed to properly explain the measurements. The quasienergies of the dressed two-level system were probed by resonant absorption via a cavity, and the results are in agreement with a calculation based on the Floquet approach.
Related Concept Videos
¹H NMR: Interpreting Distorted and Overlapping Signals
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are slanted or...
Fermi Level Dynamics
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...
π Electron Effects on Chemical Shift: Overview
Atomic Nuclei: Nuclear Relaxation Processes
Molecular Orbital Theory II
Free Energy Changes for Nonstandard States

