Electromagnetically induced transparency in a superconducting three-level system

Published

April 16, 2009

Author(s)

Mika Sillanpaa, Katarina Cicak, Fabio Altomare, Jae Park, Raymond Simmonds, Jian Li, G. S. Paraoanu, Pertti Hakonen

Abstract

When a three-level quantum system is irradiated by an intense coupling field resonant with two of the three possible transitions, the resonant absorption of the system from its ground state by an additional radiation field is suppressed. This effect, where the population is trapped in the ground state, is known in quantum optics as electromagnetically induced transparency . When the coupling field is detuned from resonance, the resonant absorption peak splits to form an Autler-Townes doublet . We observe these phenomena in a superconducting Josephson phase qubit, which can be considered an artificial atom with a multilevel quantum structure. These observations are qualitatively described by a simple model restricted to three energy levels. A full solution of the master equation including higher levels provides excellent agreement with all the experimental data.

Citation

Physical Review Letters

Volume

103

Pub Type

Journals

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Keywords

superconducting, Josephson qubit, Autler-Townes, EIT

Citation

Sillanpaa, M. , Cicak, K. , Altomare, F. , Park, J. , Simmonds, R. , Li, J. , Paraoanu, G. and Hakonen, P. (2009), Electromagnetically induced transparency in a superconducting three-level system, Physical Review Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=902514 (Accessed October 13, 2025)