Autler-Townes Effect in a Superconducting Three-Level System

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© 2009 American Physical Society (APS). This is the accepted version of the following article: Sillanpää, Mika A. & Li, Jian & Cicak, Katarina & Altomare, Fabio & Park, Jae I. & Simmonds, Raymond W. & Paraoanu, G. S. & Hakonen, Pertti J. 2009. Autler-Townes Effect in a Superconducting Three-Level System. Physical Review Letters. Volume 103, Issue 19. 193601/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.103.193601, which has been published in final form at http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.103.193601.
Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2009
Major/Subject
Mcode
Degree programme
Language
en
Pages
193601/1-4
Series
Physical Review Letters, Volume 103, Issue 19
Abstract
When a three-level quantum system is irradiated by an intense coupling field resonant with one of the three possible transitions, the absorption peak of an additional probe field involving the remaining level is split. This process is known in quantum optics as the Autler-Townes effect. We observe these phenomena in a superconducting Josephson phase qubit, which can be considered an “artificial atom” with a multilevel quantum structure. The spectroscopy peaks can be explained reasonably well by a simple three-level Hamiltonian model. Simulation of a more complete model (including dissipation, higher levels, and cross coupling) provides excellent agreement with all of the experimental data.
Description
Keywords
quantum systems, Autler-Townes effect, Josephson qubit, superconductivity
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Citation
Sillanpää, Mika A. & Li, Jian & Cicak, Katarina & Altomare, Fabio & Park, Jae I. & Simmonds, Raymond W. & Paraoanu, G. S. & Hakonen, Pertti J. 2009. Autler-Townes Effect in a Superconducting Three-Level System. Physical Review Letters. Volume 103, Issue 19. 193601/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.103.193601.