Three-Wave Mixing Kinetic Inductance Traveling-Wave Amplifier with Near-Quantum-Limited Noise Performance

Malnou, M.; Vissers, Michael; Wheeler, Jordan; Aumentado, José; Hubmayr, J.; Ullom, Joel N.; Gao, Jiansong

doi:10.1103/prxquantum.2.010302

Cited by 105 publications

(108 citation statements)

References 34 publications

Supporting

Mentioning

105

Contrasting

Order By: Relevance

“…Once we have optimised the circuit parameters to achieve various optimisation targets, it is easy to increase the peak gain by utilising dispersion control features to achieve exponential instead of quadratic gain. 13 These dispersion engineered structure can be realised using periodically loaded elements, 10,[17][18][19][20][21] or high-Q resonators which was termed as Resonance Phase Matching (RPM) technique. 9,13,14 We opt for the latter option for our JTWPA because the high junction inductance results in shorter transmission length (i.e., less number of unit cells required), and hence there will be insufficient number of repeated cells to accumulate the required dispersion divergence.…”

Section: Optimised Jtwpa With Exponential Gainmentioning

confidence: 99%

Optimising the design of a broadband Josephson junction TWPA for axion dark matter search experiments

Montilla

Tan

2021

Quantum Technology: Driving Commercialisation of an Enabling Science II

View full text Add to dashboard Cite

Broadband ultra-low noise amplification is important for many fundamental physics experiments. In our case, we aim to develop a quantum limited Josephson Travelling Wave Parametric Amplifier (JTWPA) for dark matter search experiments. In this paper, we focus on the development of the JTWPA, in particular to optimise the performance of the amplifier with a simplified fabrication prospect. We present our methodology for the optimisation process, focusing on three important aspects, namely utilising the minimal number of tunnel junction required, maximising the operational bandwidth and achieving a 50 Ω characteristic impedance. We first explore the relations between the important circuit parameters of the JTWPA and its performance indicators. Using the information obtained, we perform our optimisation process to search for the optimal design parameters. We then compare the gain bandwidth performance of the different optimised models, and present our findings with further analyses. We demonstrate that our optimised model requires 4× less tunnel junctions compared to the conventional model, and we are able to improve the operational bandwidth by 68% while maintaining the characteristic impedance of the device at 50 Ω.

show abstract

Section: Optimised Jtwpa With Exponential Gainmentioning

confidence: 99%

Optimising the design of a broadband Josephson junction TWPA for axion dark matter search experiments

Montilla

Tan

2021

Quantum Technology: Driving Commercialisation of an Enabling Science II

View full text Add to dashboard Cite

show abstract

“…Kinetic inductance parametric amplifiers are more tolerant than JPAs against stray magnetic fields [17], such as those encountered in quantum dot experiments. However, they exhibit a weak non-linearity that puts them at a length and footprint disadvantage in TWPAs [18]. Regardless of the superconducting technology, demonstrating a useful TWPA in the sub-GHz domain has remained an outstanding challenge.…”

Section: Introductionmentioning

confidence: 99%

A Sub-GHz Impedance-Engineered Parametric Amplifier for the Readout of Sensors and Quantum Dots

Vesterinen

Simbierowicz

Jabdaraghi

et al. 2022

IEEE Trans. Appl. Supercond.

View full text Add to dashboard Cite

In the work on superconducting parametric amplifiers, the frequency band below one gigahertz is calling for systematic improvements. Despite a prospect for ultralow added noise, bandwidth limitations have slowed down the integration of such amplifiers into sub-GHz experiments demanding fast (< 1 µs) readout speeds. Here, we study the impedance engineering of a flux-driven Josephson parametric amplifier (JPA) at 600 MHz. We propose, simulate and experimentally demonstrate a partially reconfigurable impedance transformer. The transformer enhances the JPA bandwidth to a state-ofthe-art value of 10 MHz at 20 dB gain. Our amplifier has immediate applications in the readout of cryogenic sensors and in the reflectometry of quantum dots for spin qubit quantum computing.

show abstract

“…Kinetic inductance travelling-wave parametric amplifiers (KI-TWPAs) promise high gain, large bandwidth and potential for quantum limited noise performance [1]. Currently, most KI-TWPAs [2,3,4] have been fabricated for sub-20 GHz and mK temperature operation. However, there is interest in extending this to higher frequency applications where quantum limited amplification is needed such as dark matter detection [5] and high frequency quantum computing [6].…”

Section: Introductionmentioning

confidence: 99%

Millimetre Wave Kinetic Inductance Parametric Amplification using Ridge Gap Waveguide

Banys,

McCulloch,

Sweetnam

et al. 2021

Preprint

View full text Add to dashboard Cite

We present the design and simulation methodology of a superconducting ridge-gap waveguide (RGWG) as a potential basis for mm-wave kinetic inductance travelling wave parametric amplifiers (KI-TWPAs). A superconducting RGWG was designed using Ansys HFSS to support a quasi-TEM mode of transmission over a bandwidth of 20 to 120 GHz with its internal dimensions optimised for integration with W-band rectangular waveguide. A design of an impedance loaded travelling wave structure incorporating periodic perturbations of the ridge was described. A method to simulate the nonlinear kinetic inductance via user-defined components in Keysight's ADS was outlined, which yielded the power dependent Sparameters and parametric signal gain. A RGWG with a 30 nm NbTiN coating and 5 µm conductor spacing, corresponding to a kinetic inductance fraction α ∼ 60% was used to realise a KI-TWPA with 900 perturbations equivalent to a physical length 25 cm that achieved more than 10 dB of signal gain over a 75-110 GHz bandwidth via 4-wave mixing (4WM).

show abstract

Three-Wave Mixing Kinetic Inductance Traveling-Wave Amplifier with Near-Quantum-Limited Noise Performance

Cited by 105 publications

References 34 publications

Optimising the design of a broadband Josephson junction TWPA for axion dark matter search experiments

Optimising the design of a broadband Josephson junction TWPA for axion dark matter search experiments

A Sub-GHz Impedance-Engineered Parametric Amplifier for the Readout of Sensors and Quantum Dots

Millimetre Wave Kinetic Inductance Parametric Amplification using Ridge Gap Waveguide

Contact Info

Product

Resources

About