Simulating the Effects of Fabrication Tolerance on the Performance of Josephson Travelling Wave Parametric Amplifiers

Physics

Associated organisational unit

Quantum Nanotechnology

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https://doi.org/10.1088/1361-6668/acba4e
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Available under license: CC BY

Keywords

Materials Chemistry, Electrical and Electronic Engineering, Metals and Alloys, Condensed Matter Physics, Ceramics and Composites

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Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Simulating the Effects of Fabrication Tolerance on the Performance of Josephson Travelling Wave Parametric Amplifiers. / Ó Peatáin, Searbhán Gearóid; Dixon, Tom; Meeson, Phil J et al.
In: Superconductor Science and Technology, Vol. 36, No. 4, 045017, 01.04.2023.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{a696330936554fbab3aac5d1d8ecaa7b,

title = "Simulating the Effects of Fabrication Tolerance on the Performance of Josephson Travelling Wave Parametric Amplifiers",

abstract = "We present the simulated performance of a Josephson traveling wave parametric amplifier based on a one-dimensional array of radio-frequency single-junction superconducting quantum interference devices. Using the capabilities allowed by the WRspice simulation platform and previous works on this scheme, we include in our study the effects of fabrication tolerances in the device parameters on the gain of the amplifier. Our simulations show the negative effects of parameter variation and the resulting microwave reflections of signal and pump waves between individual cells. We present a method to understand the inner dynamics of the device using an impedance model that substitutes the need to simultaneously consider phase bias points and wave mixing dynamics. This should allow the application of the results presented here to more complex schemes, which promise higher amplification and fewer drawbacks. We highlight the strict limitations on parameter spread in these devices while also discussing the robustness of the scheme to defects.",

keywords = "Materials Chemistry, Electrical and Electronic Engineering, Metals and Alloys, Condensed Matter Physics, Ceramics and Composites",

author = "{{\'O} Peat{\'a}in}, {Searbh{\'a}n Gear{\'o}id} and Tom Dixon and Meeson, {Phil J} and Jonathan Williams and Sergey Kafanov and Pashkin, {Yuri A.}",

year = "2023",

month = apr,

day = "1",

doi = "10.1088/1361-6668/acba4e",

language = "English",

volume = "36",

journal = "Superconductor Science and Technology",

issn = "0953-2048",

publisher = "IOP Publishing Ltd.",

number = "4",

}

RIS

TY - JOUR

T1 - Simulating the Effects of Fabrication Tolerance on the Performance of Josephson Travelling Wave Parametric Amplifiers

AU - Ó Peatáin, Searbhán Gearóid

AU - Dixon, Tom

AU - Meeson, Phil J

AU - Williams, Jonathan

AU - Kafanov, Sergey

AU - Pashkin, Yuri A.

PY - 2023/4/1

Y1 - 2023/4/1

N2 - We present the simulated performance of a Josephson traveling wave parametric amplifier based on a one-dimensional array of radio-frequency single-junction superconducting quantum interference devices. Using the capabilities allowed by the WRspice simulation platform and previous works on this scheme, we include in our study the effects of fabrication tolerances in the device parameters on the gain of the amplifier. Our simulations show the negative effects of parameter variation and the resulting microwave reflections of signal and pump waves between individual cells. We present a method to understand the inner dynamics of the device using an impedance model that substitutes the need to simultaneously consider phase bias points and wave mixing dynamics. This should allow the application of the results presented here to more complex schemes, which promise higher amplification and fewer drawbacks. We highlight the strict limitations on parameter spread in these devices while also discussing the robustness of the scheme to defects.

AB - We present the simulated performance of a Josephson traveling wave parametric amplifier based on a one-dimensional array of radio-frequency single-junction superconducting quantum interference devices. Using the capabilities allowed by the WRspice simulation platform and previous works on this scheme, we include in our study the effects of fabrication tolerances in the device parameters on the gain of the amplifier. Our simulations show the negative effects of parameter variation and the resulting microwave reflections of signal and pump waves between individual cells. We present a method to understand the inner dynamics of the device using an impedance model that substitutes the need to simultaneously consider phase bias points and wave mixing dynamics. This should allow the application of the results presented here to more complex schemes, which promise higher amplification and fewer drawbacks. We highlight the strict limitations on parameter spread in these devices while also discussing the robustness of the scheme to defects.

KW - Materials Chemistry

KW - Electrical and Electronic Engineering

KW - Metals and Alloys

KW - Condensed Matter Physics

KW - Ceramics and Composites

U2 - 10.1088/1361-6668/acba4e

DO - 10.1088/1361-6668/acba4e

M3 - Journal article

VL - 36

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

SN - 0953-2048

IS - 4

M1 - 045017

ER -

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Keywords