Broadband Parametric Amplification in DARTWARS
Year: 2024
Authors: Faverzani M., Campana P., Carobene R., Gobbo M., Ahrens F., Avallone G., Barone C., Borghesi M., Capelli S., Carapella G., Caricato AP., Callegaro L., Carusotto I., Celotto A., Cian A., D’Elia A., Di Gioacchino D., Enrico E., Falferi P., Fasolo L., Ferri E., Filatrella G., Gatti C., Giubertoni D., Granata V., Guarcello C., Irace A., Labranca D., Leo A., Ligi C., Maccarrone G., Mantegazzini F., Margesin B., Maruccio G., Mezzena R., Monteduro AG., Moretti R., Nucciotti A., Oberto L., Origo L., Pagano S., Komnang ASP., Piersanti L., Rettaroli A., Rizzato S., Tocci S., Vinante A., Zannoni M., Giachero A.
Autors Affiliation: Univ Milano Bicocca, Phys Dept, Milan, Italy; INFN, Sez Milano Bicocca, Milan, Italy; Bicocca Quantum Technol BiQuTe Ctr, Milan, Italy; Fdn Bruno Kessler, Trento, Italy; INFN TIFPA, Trento, Italy; Univ Salerno, Phys Dept, Salerno, Italy; INFN, Sez Napoli, Naples, Italy; Univ Salento, Dept Ph ys, Lecce, Italy; INFN, Sez Lecce, Lecce, Italy; INRiM, Turin, Italy; BEC Ctr, INO CNR, Trento, Italy; Univ Trento, Phys Dept, Trento, Italy; INFN, Lab Nazl Frascati, Frascati, Italy; CNR, IFN, Trento, Italy; Univ Sannio, Dept Sci & Technol, Benevento, Italy.
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 20 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 9 dB across a 2 GHz bandwidth for a KITWPA spanning 17 mm in length.
Journal/Review: JOURNAL OF LOW TEMPERATURE PHYSICS
More Information: This work is supported by DARTWARS, a project funded by the Italian Institute of Nuclear Physics (INFN) within the Technological and Interdisciplinary Research Commission (CSN5), by European Union’s H2020-MSCA Grant Agreement No. 101027746, by the Italian National Centre for HPC Big Data and Quantum Computing (PNRR MUR Project CN0000013-ICSC) and by the Italian National Quantum Science and Technology Institute (PNRR MUR Project PE0000023-NQSTI). We acknowledge the support of the FBK cleanroom team for the fabrication. We also acknowledge useful discussions with Jiansong Gao, Michael Vissers, Jordan Wheeler, and Maxime Malnou. CB and SP acknowledge support from University of Salerno-Italy under the Projects FRB19PAGAN, FRB20BARON and FRB22PAGAN.KeyWords: Quantum noise; Parametric amplifier; Traveling wave; Detector array readout; Qubits readoutDOI: 10.1007/s10909-024-03119-9Connecting to view paper tab on IsiWeb: Click here