Influence of bias-voltage noise on the inelastic cooper-pair tunneling amplifier (ICTA)

U. Martel; R. Albert; F. Blanchet; J. Griesmar; G. Ouellet; H. Therrien; N. Nehra; N. Bourlet; A. Peugeot; M. Hofheinz

doi:10.1063/5.0240842

Influence of bias-voltage noise on the inelastic cooper-pair tunneling amplifier (ICTA)

U. Martel
, R. Albert
, F. Blanchet
, J. Griesmar
, G. Ouellet
, H. Therrien
, N. Nehra
, N. Bourlet
, A. Peugeot
, M. Hofheinz

Université de Sherbrooke
CEA-INAC-PHELIQS
Laboratoire de Physique

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

Abstract

We experimentally show that the inelastic cooper-pair tunneling amplifier (ICTA), implementing a DC-powered parametric amplification scheme, can achieve gain and noise performance similar to that of AC-powered Josephson parametric amplifiers. Using experimental data and simulations, we show that the ICTA has near-quantum-limited noise as long as low-frequency voltage noise, expressed as broadening of the Josephson frequency line, is narrower than the amplification bandwidth. We observe a gain of 20 dB across a 11 MHz bandwidth with noise below 1.7 times the quantum limit when the full width at half maximum of the Josephson frequency linewidth is 5.6 MHz.

Original language	English
Article number	074001
Journal	Applied Physics Letters
Volume	126
Issue number	7
DOIs	https://doi.org/10.1063/5.0240842
Publication status	Published - 17 Feb 2025
Externally published	Yes

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10.1063/5.0240842

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title = "Influence of bias-voltage noise on the inelastic cooper-pair tunneling amplifier (ICTA)",

abstract = "We experimentally show that the inelastic cooper-pair tunneling amplifier (ICTA), implementing a DC-powered parametric amplification scheme, can achieve gain and noise performance similar to that of AC-powered Josephson parametric amplifiers. Using experimental data and simulations, we show that the ICTA has near-quantum-limited noise as long as low-frequency voltage noise, expressed as broadening of the Josephson frequency line, is narrower than the amplification bandwidth. We observe a gain of 20 dB across a 11 MHz bandwidth with noise below 1.7 times the quantum limit when the full width at half maximum of the Josephson frequency linewidth is 5.6 MHz.",

author = "U. Martel and R. Albert and F. Blanchet and J. Griesmar and G. Ouellet and H. Therrien and N. Nehra and N. Bourlet and A. Peugeot and M. Hofheinz",

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T1 - Influence of bias-voltage noise on the inelastic cooper-pair tunneling amplifier (ICTA)

AU - Martel, U.

AU - Albert, R.

AU - Blanchet, F.

AU - Griesmar, J.

AU - Ouellet, G.

AU - Therrien, H.

AU - Nehra, N.

AU - Bourlet, N.

AU - Peugeot, A.

AU - Hofheinz, M.

PY - 2025/2/17

Y1 - 2025/2/17

N2 - We experimentally show that the inelastic cooper-pair tunneling amplifier (ICTA), implementing a DC-powered parametric amplification scheme, can achieve gain and noise performance similar to that of AC-powered Josephson parametric amplifiers. Using experimental data and simulations, we show that the ICTA has near-quantum-limited noise as long as low-frequency voltage noise, expressed as broadening of the Josephson frequency line, is narrower than the amplification bandwidth. We observe a gain of 20 dB across a 11 MHz bandwidth with noise below 1.7 times the quantum limit when the full width at half maximum of the Josephson frequency linewidth is 5.6 MHz.

AB - We experimentally show that the inelastic cooper-pair tunneling amplifier (ICTA), implementing a DC-powered parametric amplification scheme, can achieve gain and noise performance similar to that of AC-powered Josephson parametric amplifiers. Using experimental data and simulations, we show that the ICTA has near-quantum-limited noise as long as low-frequency voltage noise, expressed as broadening of the Josephson frequency line, is narrower than the amplification bandwidth. We observe a gain of 20 dB across a 11 MHz bandwidth with noise below 1.7 times the quantum limit when the full width at half maximum of the Josephson frequency linewidth is 5.6 MHz.

UR - https://www.scopus.com/pages/publications/85218357412

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DO - 10.1063/5.0240842

M3 - Article

AN - SCOPUS:85218357412

SN - 0003-6951

VL - 126

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 7

M1 - 074001

ER -

Influence of bias-voltage noise on the inelastic cooper-pair tunneling amplifier (ICTA)

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