Dynamical autler-townes control of a phase qubit

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

doi:10.1038/srep00645

Dynamical autler-townes control of a phase qubit

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

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

42 Citations (Scopus)

Abstract

Routers, switches, and repeaters are essential components of modern information-processing systems. Similar devices will be needed in future superconducting quantum computers. In this work we investigate experimentally the time evolution of Autler-Townes splitting in a superconducting phase qubit under the application of a control tone resonantly coupled to the second transition. A three-level model that includes independently determined parameters for relaxation and dephasing gives excellent agreement with the experiment. The results demonstrate that the qubit can be used as a ON/OFF switch with 100 ns operating time-scale for the reflection/transmission of photons coming from an applied probe microwave tone. The ON state is realized when the control tone is sufficiently strong to generate an Autler-Townes doublet, suppressing the absorption of the probe tone photons and resulting in a maximum of transmission.

Original language	English
Article number	645
Journal	Scientific Reports
Volume	2
DOIs	https://doi.org/10.1038/srep00645
Publication status	Published - 2012
Externally published	Yes

ASJC Scopus subject areas

Multidisciplinary

Access to Document

10.1038/srep00645

Cite this

@article{dab0554d4b16431288850154a0f522a3,

title = "Dynamical autler-townes control of a phase qubit",

abstract = "Routers, switches, and repeaters are essential components of modern information-processing systems. Similar devices will be needed in future superconducting quantum computers. In this work we investigate experimentally the time evolution of Autler-Townes splitting in a superconducting phase qubit under the application of a control tone resonantly coupled to the second transition. A three-level model that includes independently determined parameters for relaxation and dephasing gives excellent agreement with the experiment. The results demonstrate that the qubit can be used as a ON/OFF switch with 100 ns operating time-scale for the reflection/transmission of photons coming from an applied probe microwave tone. The ON state is realized when the control tone is sufficiently strong to generate an Autler-Townes doublet, suppressing the absorption of the probe tone photons and resulting in a maximum of transmission.",

author = "Jian Li and Paraoanu, {G. S.} and Katarina Cicak and Fabio Altomare and Park, {Jae I.} and Simmonds, {Raymond W.} and Sillanp{\"a}{\"a}, {Mika A.} and Hakonen, {Pertti J.}",

year = "2012",

doi = "10.1038/srep00645",

language = "English",

volume = "2",

journal = "Scientific Reports",

issn = "2045-2322",

publisher = "Nature Publishing Group",

}

TY - JOUR

T1 - Dynamical autler-townes control of a phase qubit

AU - Li, Jian

AU - Paraoanu, G. S.

AU - Cicak, Katarina

AU - Altomare, Fabio

AU - Park, Jae I.

AU - Simmonds, Raymond W.

AU - Sillanpää, Mika A.

AU - Hakonen, Pertti J.

PY - 2012

Y1 - 2012

N2 - Routers, switches, and repeaters are essential components of modern information-processing systems. Similar devices will be needed in future superconducting quantum computers. In this work we investigate experimentally the time evolution of Autler-Townes splitting in a superconducting phase qubit under the application of a control tone resonantly coupled to the second transition. A three-level model that includes independently determined parameters for relaxation and dephasing gives excellent agreement with the experiment. The results demonstrate that the qubit can be used as a ON/OFF switch with 100 ns operating time-scale for the reflection/transmission of photons coming from an applied probe microwave tone. The ON state is realized when the control tone is sufficiently strong to generate an Autler-Townes doublet, suppressing the absorption of the probe tone photons and resulting in a maximum of transmission.

AB - Routers, switches, and repeaters are essential components of modern information-processing systems. Similar devices will be needed in future superconducting quantum computers. In this work we investigate experimentally the time evolution of Autler-Townes splitting in a superconducting phase qubit under the application of a control tone resonantly coupled to the second transition. A three-level model that includes independently determined parameters for relaxation and dephasing gives excellent agreement with the experiment. The results demonstrate that the qubit can be used as a ON/OFF switch with 100 ns operating time-scale for the reflection/transmission of photons coming from an applied probe microwave tone. The ON state is realized when the control tone is sufficiently strong to generate an Autler-Townes doublet, suppressing the absorption of the probe tone photons and resulting in a maximum of transmission.

UR - http://www.scopus.com/inward/record.url?scp=84867000759&partnerID=8YFLogxK

U2 - 10.1038/srep00645

DO - 10.1038/srep00645

M3 - Article

C2 - 22966420

AN - SCOPUS:84867000759

SN - 2045-2322

VL - 2

JO - Scientific Reports

JF - Scientific Reports

M1 - 645

ER -

Dynamical autler-townes control of a phase qubit

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this