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arXiv:2207.12775 · Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment

Ultra low noise readout with traveling wave parametric amplifiers: The DARTWARS project

A. Rettaroli, C. Barone, M. Borghesi, S. Capelli, Giovanni Carapella, Anna Paola Caricato, Iacopo Carusotto, Alessandro Cian, Daniele Di Gioacchino, Emanuele Enrico, P. Falferi, Luca Fasolo, M. Faverzani, E. Ferri, Giovanni Filatrella, Claudio D. Gatti, Andrea Giachero, D. Giubertoni, V. Granata, Angelo Greco, Claudio Guarcello, Danilo Labranca, Angelo Leo, Carlo Ligi, Giovanni Maccarrone, Federica Mantegazzini, B. Margesin, Giuseppe Maruccio, C. Mauro, R. Mezzena, Anna Grazia Monteduro, Angelo Nucciotti, L. Oberto, Luca Origo, S. Pagano, Vincenzo Claudio Pierro, L. Piersanti, M. Rajteri, Silvia Rizzato, Andrea Vinante, M. Zannoni

Published Nov 2, 2022• 11 citations
arXivHTMLPDF
DOI
10.1016/j.nima.2022.167679

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Noise at the quantum limit over a broad bandwidth is a fundamental requirement for future cryogenic experiments for neutrino mass measurements, dark matter searches and Cosmic Microwave Background (CMB) measurements as well as for fast high-fidelity read-out of superconducting qubits. In the last years, Josephson Parametric Amplifiers (JPA) have demonstrated noise levels close to the quantum limit, but due to their narrow bandwidth, only few detectors or qubits per line can be read out in parallel. An alternative and innovative solution is based on superconducting parametric amplification exploiting the travelling-wave concept. Within the DARTWARS (Detector Array Readout with Travelling Wave AmplifieRS) project, we develop Kinetic Inductance Travelling-Wave Parametric Amplifiers (KI-TWPAs) for low temperature detectors and qubit read-out. KI-TWPAs are typically operated in a threewave mixing (3WM) mode and are characterised by a high gain, a high saturation power, a large amplification bandwidth and nearly quantum limited noise performance. The goal of the DARTWARS project is to optimise the KI-TWPA design, explore new materials, and investigate alternative fabrication processes in order to enhance the overall performance of the amplifier. In this contribution we present the advancements made by the DARTWARS collaboration to produce a working prototype of a KI-TWPA, from the fabrication to the characterisation.

arXiv:2402.12295•IEEE Transactions on Applied Superconductivity•Jan 11, 2024•3 citations
Noise at the quantum limit over a broad bandwidth is a fundamental requirement for future cryogenic experiments for neutrino mass measurements, dark matter searches and Cosmic Microwave Background (CMB) measurements as well as for fast high-fidelity read-out of superconducting qubits. In the last years, Josephson Parametric Amplifiers (JPA) have demonstrated noise levels close to the quantum limit, but due to their narrow bandwidth, only few detectors or qubits per line can be read out in parallel. An alternative and innovative solution is based on superconducting parametric amplification exploiting the travelling-wave concept. Within the DARTWARS (Detector Array Readout with Travelling Wave AmplifieRS) project, we develop Kinetic Inductance Travelling-Wave Parametric Amplifiers (KI-TWPAs) for low temperature detectors and qubit read-out. KI-TWPAs are typically operated in a threewave mixing (3WM) mode and are characterised by a high gain, a high saturation power, a large amplification bandwidth and nearly quantum limited noise performance. The goal of the DARTWARS project is to optimise the KI-TWPA design, explore new materials, and investigate alternative fabrication processes in order to enhance the overall performance of the amplifier. In this contribution we present the advancements made by the DARTWARS collaboration to produce a working prototype of a KI-TWPA, from the fabrication to the characterisation.