Development of KI-TWPAs for the DARTWARS project
Abstract
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.
Cite
@article{arxiv.2402.12295,
title = {Development of KI-TWPAs for the DARTWARS project},
author = {Felix Ahrens and Elena Ferri and Guerino Avallone and Carlo Barone and Matteo Borghesi and Luca Callegaro and Giovanni Carapella and Anna Paola Caricato and Iacopo Carusotto and Alessandro Cian and Alessandro D'Elia and Daniele Di Gioacchino and Emanuele Enrico and Paolo Falferi and Luca Fasolo and Marco Faverzani and Giovanni Filatrella and Claudio Gatti and Andrea Giachero and Damiano Giubertoni and Veronica Granata and Claudio Guarcello and Danilo Labranca and Angelo Leo and Carlo Ligi and Giovanni Maccarrone and Federica Mantegazzini and Benno Margesin and Giuseppe Maruccio and Renato Mezzena and Anna Grazia Monteduro and Roberto Moretti and Angelo Nucciotti and Luca Oberto and Luca Origo and Sergio Pagano and Alex Stephane Piedjou and Luca Piersanti and Alessio Rettaroli and Silvia Rizzato and Simone Tocci and Andrea Vinante and Mario Zannoni},
journal= {arXiv preprint arXiv:2402.12295},
year = {2024}
}