Autler-Townes Effect in a Superconducting Three-Level System

Mika A. Sillanpää; Jian Li; Katarina Cicak; Fabio Altomare; Jae I. Park; Raymond W. Simmonds; Gheorghe-Sorin Paraoanu; Pertti J. Hakonen

doi:10.1103/PhysRevLett.103.193601

Autler-Townes Effect in a Superconducting Three-Level System

Mika A. Sillanpää, Jian Li, Katarina Cicak, Fabio Altomare, Jae I. Park, Raymond W. Simmonds, Gheorghe-Sorin Paraoanu, Pertti J. Hakonen

Department of Applied Physics

National Institute of Standards and Technology NIST

Research output: Contribution to journal › Article › Scientific › peer-review

140 Citations (Scopus)

113 Downloads (Pure)

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.

Original language	English
Article number	193601
Pages (from-to)	1-4
Number of pages	4
Journal	Physical Review Letters
Volume	103
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.103.193601
Publication status	Published - 2009
MoE publication type	A1 Journal article-refereed

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title = "Autler-Townes Effect in a Superconducting Three-Level System",

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.",

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AU - Sillanpää, Mika A.

AU - Li, Jian

AU - Cicak, Katarina

AU - Altomare, Fabio

AU - Park, Jae I.

AU - Simmonds, Raymond W.

AU - Paraoanu, Gheorghe-Sorin

AU - Hakonen, Pertti J.

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AB - 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.

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Autler-Townes Effect in a Superconducting Three-Level System

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