Braumüller, J. et al. (2015) Multiphoton dressing of an anharmonic superconducting many-level quantum circuit. Physical Review B, 91(5), 054523. (doi: 10.1103/PhysRevB.91.054523)
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Abstract
We report on the investigation of a superconducting anharmonic multilevel circuit that is coupled to a harmonic readout resonator. We observe multiphoton transitions via virtual energy levels of our system up to the fifth excited state. The back-action of these higher-order excitations on our readout device is analyzed quantitatively and demonstrated to be in accordance with theoretical expectation. By applying a strong microwave drive we achieve multiphoton dressing within our anharmonic circuit which is dynamically coupled by a weak probe tone. The emerging higher-order Rabi sidebands and associated Autler-Townes splittings involving up to five levels of the investigated anharmonic circuit are observed. Experimental results are in good agreement with master-equation simulations.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Weides, Professor Martin |
Authors: | Braumüller, J., Cramer, J., Schlör, S., Rotzinger, H., Radtke, L., Lukashenko, A., Yang, P., Skacel, S. T., Probst, S., Marthaler, M., Guo, L., Ustinov, A. V., and Weides, M. |
College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
Journal Name: | Physical Review B |
Publisher: | American Physical Society |
ISSN: | 1098-0121 |
ISSN (Online): | 2469-9969 |
Copyright Holders: | Copyright © 2015 American Physical Society |
First Published: | First published in Physical Review B 91(5): 054523 |
Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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