Broadband parametric amplification in DARTWARS
Abstract
Superconducting parametric amplifiers offer the capability to amplify feeble signals with extremely low levels of added noise, potentially reaching quantum-limited amplification. This characteristic makes them essential components in the realm of high-fidelity quantum computing and serves to propel advancements in the field of quantum sensing. In particular, Traveling-Wave Parametric Amplifiers (TWPAs) may be especially suitable for practical applications due to their multi-Gigahertz amplification bandwidth, a feature lacking in Josephson Parametric Amplifiers (JPAs), despite the latter being a more established technology. This paper presents recent developments of the DARTWARS (Detector Array Readout with Traveling Wave AmplifieRS) project, focusing on the latest prototypes of Kinetic Inductance TWPAs (KITWPAs). The project aims to develop a KITWPA capable of achieving dB of amplification. To enhance the production yield, the first prototypes were fabricated with half the length and expected gain of the final device. In this paper, we present the results of the characterization of one of the half-length prototypes. The measurements revealed an average amplification of approximately dB across a GHz bandwidth for a KITWPA spanning mm in length.
Cite
@article{arxiv.2402.12045,
title = {Broadband parametric amplification in DARTWARS},
author = {Marco Faverzani and Pietro Campana and Rodolfo Carobene and Marco Gobbo and Felix Ahrens and Guerino Avallone and Carlo Barone and Matteo Borghesi and Silvia Capelli and Giovanni Carapella and Anna Paola Caricato and Luca Callegaro and Iacopo Carusotto and Andrea Celotto and Alessandro Cian and Alessandro D'Elia and Daniele Di Gioacchino and Emanuele Enrico and Paolo Falferi and Luca Fasolo and Elena Ferri and Giovanni Filatrella and Claudio Gatti and Damiano Giubertoni and Veronica Granata and Claudio Guarcello and Alessandro Irace 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 Moneduro and Roberto Moretti and Angelo Nucciotti and Luca Oberto and Luca Origo and Sergio Pagano and Alex Stephane Piedjou Komnang and Luca Piersanti and Alessio Rettaroli and Silvia Rizzato and Simone Tocci and Andrea Vinante and Mario Zannoni and Andrea Giachero},
journal= {arXiv preprint arXiv:2402.12045},
year = {2024}
}