A Josephson traveling wave parametric amplifier featuring superconducting nonlinear asymmetric inductive elements

Visa Vesterinen; Debopam Datta; Nils Tiencken; Slawomir Simbierowicz; Leila (Robab) Najafi Jabdaraghi; Leif Grönberg; Janne Lehtinen; Mika Prunnila; Joonas Govenius

A Josephson traveling wave parametric amplifier featuring superconducting nonlinear asymmetric inductive elements

Visa Vesterinen, Debopam Datta, Nils Tiencken, Slawomir Simbierowicz, Leila (Robab) Najafi Jabdaraghi, Leif Grönberg, Janne Lehtinen, Mika Prunnila, Joonas Govenius

Research output: Contribution to conference › Conference Abstract › Scientific › peer-review

Abstract

We present our latest experimental results on Josephson traveling wave parametric amplifiers (TWPAs) fabricated with our Nb/Al-AlOx/Nb junction process [1,2] tailored for the readout of superconducting quantum bits. Our TWPA exhibits gain in excess of 15 dB across 4-9 GHz in three-wave mixing. The device design features superconducting nonlinear asymmetric inductive elements (SNAILs), an integrated on-chip magnetic flux bias line, as well as engineered dispersion for the control of the second harmonic generation of the pump tone. We compare the experimental results to predictions from coupled mode equations.

Original language	English
Publication status	Published - 16 Mar 2021
MoE publication type	Not Eligible
Event	APS March Meeting 2021: Online - Virtual Duration: 15 Mar 2021 → 19 Mar 2021 https://march.aps.org/

Conference

Conference	APS March Meeting 2021
Period	15/03/21 → 19/03/21
Internet address	https://march.aps.org/

Cite this

@conference{63de53874f924e9d9f3aec1eafc59165,

title = "A Josephson traveling wave parametric amplifier featuring superconducting nonlinear asymmetric inductive elements",

abstract = "We present our latest experimental results on Josephson traveling wave parametric amplifiers (TWPAs) fabricated with our Nb/Al-AlOx/Nb junction process [1,2] tailored for the readout of superconducting quantum bits. Our TWPA exhibits gain in excess of 15 dB across 4-9 GHz in three-wave mixing. The device design features superconducting nonlinear asymmetric inductive elements (SNAILs), an integrated on-chip magnetic flux bias line, as well as engineered dispersion for the control of the second harmonic generation of the pump tone. We compare the experimental results to predictions from coupled mode equations.",

author = "Visa Vesterinen and Debopam Datta and Nils Tiencken and Slawomir Simbierowicz and {Najafi Jabdaraghi}, {Leila (Robab)} and Leif Gr{\"o}nberg and Janne Lehtinen and Mika Prunnila and Joonas Govenius",

year = "2021",

month = mar,

day = "16",

language = "English",

note = "APS March Meeting 2021 : Online ; Conference date: 15-03-2021 Through 19-03-2021",

url = "https://march.aps.org/",

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TY - CONF

T1 - A Josephson traveling wave parametric amplifier featuring superconducting nonlinear asymmetric inductive elements

AU - Vesterinen, Visa

AU - Datta, Debopam

AU - Tiencken, Nils

AU - Simbierowicz, Slawomir

AU - Najafi Jabdaraghi, Leila (Robab)

AU - Grönberg, Leif

AU - Lehtinen, Janne

AU - Prunnila, Mika

AU - Govenius, Joonas

PY - 2021/3/16

Y1 - 2021/3/16

N2 - We present our latest experimental results on Josephson traveling wave parametric amplifiers (TWPAs) fabricated with our Nb/Al-AlOx/Nb junction process [1,2] tailored for the readout of superconducting quantum bits. Our TWPA exhibits gain in excess of 15 dB across 4-9 GHz in three-wave mixing. The device design features superconducting nonlinear asymmetric inductive elements (SNAILs), an integrated on-chip magnetic flux bias line, as well as engineered dispersion for the control of the second harmonic generation of the pump tone. We compare the experimental results to predictions from coupled mode equations.

AB - We present our latest experimental results on Josephson traveling wave parametric amplifiers (TWPAs) fabricated with our Nb/Al-AlOx/Nb junction process [1,2] tailored for the readout of superconducting quantum bits. Our TWPA exhibits gain in excess of 15 dB across 4-9 GHz in three-wave mixing. The device design features superconducting nonlinear asymmetric inductive elements (SNAILs), an integrated on-chip magnetic flux bias line, as well as engineered dispersion for the control of the second harmonic generation of the pump tone. We compare the experimental results to predictions from coupled mode equations.

M3 - Conference Abstract

T2 - APS March Meeting 2021

Y2 - 15 March 2021 through 19 March 2021

ER -

A Josephson traveling wave parametric amplifier featuring superconducting nonlinear asymmetric inductive elements

Abstract

Conference

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