Development of KITWPA amplifiers for the DARTWARS project

Barone, • C.; Borghesi, M.; Capelli, S.; Carapella, G.; Caricato, A. P.; Carusotto, I.; Cian, A.; Di Gioacchino, D.; Enrico, E.; Falferi, P.; Fasolo, L.; Faverzani, M.; Ferri, E.; Filatrella, G.; Gatti, C.; Giachero, A.; Giubertoni, D.; Granata, V.; Guarcello, C.; Labranca, D.; Leo, A.; Ligi, C.; Maccarrone, G.; Mantegazzini, F.; Moretti, R.; Margesin, B.; Maruccio, G.; Mauro, C.; Mezzena, R.; Montedur, A. G.; Nucciotti, A.; Oberto, L.; Origo, L.; Pagano, S.; Pierro, V.; Piersanti, L.; Rajteri, M.; Rettaroli, A.; Rizzato, S.; Vinante, A.; Zannoni, M.

Noise at the quantum limit over a broad bandwidth is a fundamental requirement for the future cryogenic experiments for neutrino mass measurement, dark matter searches and, CMB measurement as well as for the fast high-fidelity readout of superconducting qubits. In the last years, Josephson Parametric Amplifiers (JPA) have demonstrated noise level close to the quantum limit but, due to their narrow bandwith, only few detectors/qubits per line can be read in parallel. An alternative and innovative solution is based on superconducting parametric amplification exploiting the traveling wave concept. DARTWARS (Detector Array Readout with Traveling Wave AmplifieRS) is a three years project that aims at developing high-performing innovative Traveling Wave Parametric Amplifiers (TWPAs) with high gain, high saturation power and large bandwidth, characterized by nearly quantum limited noise for low temperature detectors and qubit readout. The Kinetic Inductance Traveling Wave Parametric Amplifiers (KI-TWPAs) constructed using NbTiN and operated in a three-wave mixing (3WM) mode have exhibited outstanding dynamic range and low-noise characteristics, nearing the quantum limit. The ultimate goal of the project is to optimize the 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 first working prototype of a KITWPA, from the production to the characterization.

Development of KITWPA amplifiers for the DARTWARS project / Barone, • C.; Borghesi, M.; Capelli, S.; Carapella, G.; Caricato, A. P.; Carusotto, I.; Cian, A.; Di Gioacchino, D.; Enrico, E.; Falferi, P.; Fasolo, L.; Faverzani, M.; Ferri, E.; Filatrella, G.; Gatti, C.; Giachero, A.; Giubertoni, D.; Granata, V.; Guarcello, C.; Labranca, D.; Leo, A.; Ligi, C.; Maccarrone, G.; Mantegazzini, F.; Moretti, R.; Margesin, B.; Maruccio, G.; Mauro, C.; Mezzena, R.; Montedur, A. G.; Nucciotti, A.; Oberto, L.; Origo, L.; Pagano, S.; Pierro, V.; Piersanti, L.; Rajteri, M.; Rettaroli, A.; Rizzato, S.; Vinante, A.; Zannoni, M.. - (2023). (Intervento presentato al convegno 16th European Conference on Applied Superconductivity tenutosi a Bologna, Italy nel 3-7 September 2023).