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- Title
Circuit quantum electrodynamics with dressed states of a superconducting artificial atom.
- Authors
Chang, Yu-Han; Dubyna, Dmytro; Chien, Wei-Chen; Chen, Chien-Han; Wu, Cen-Shawn; Kuo, Watson
- Abstract
A dynamical control of the coupling strengths between dressed states and probe photon states is demonstrated with a transmon-like artificial atom coupled to two closely spaced resonant modes. When the atom is driven with one mode, the atom state and driving photon states form the so-called dressed states. Dressed states with sideband index up to 3 were prepared and probed via the strong coupling to the other resonant mode. Spectroscopy reveals that the coupling strengths are "dressed" and can be modulated by the power and sideband index of the driving. The transmission of the probe tone is modulated by the driving microwave amplitude with a Bessel behavior, displaying multi-photon process associated with the inter-atomic level transitions.
- Subjects
MULTIPHOTON processes; ATOMS; QUANTUM electrodynamics; PHOTONS; SUPERCONDUCTING quantum interference devices
- Publication
Scientific Reports, 2022, Vol 12, Issue 1, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-022-26828-1