The DARTWARS project has the goal of developing high-performing innovative travelling wave parametric amplifiers with high gain, large bandwidth, high saturation power, and nearly quantum-limited noise. The target frequency region for its applications is 5 - 10 GHz, with an expected noise temperature of about 600 mK. The development follows two different approaches, one based on Josephson junctions and one based on kinetic inductance of superconductors. This contribution mainly focuses on the Josephson travelling wave parametric amplifier, presenting its design, preliminary measurements and the test of homogeneity of arrays of Josephson junctions.
@article{arxiv.2207.12775,
title = {Ultra low noise readout with travelling wave parametric amplifiers: the DARTWARS project},
author = {A. Rettaroli and C. Barone and M. Borghesi and S. Capelli and G. Carapella and A. P. Caricato and I. Carusotto and A. Cian and D. Di Gioacchino and E. Enrico and P. Falferi and L. Fasolo and M. Faverzani and E. Ferri and G. Filatrella and C. Gatti and A. Giachero and D. Giubertoni and V. Granata and A. Greco and C. Guarcello and D. Labranca and A. Leo and C. Ligi and G. Maccarrone and F. Mantegazzini and B. Margesin and G. Maruccio and C. Mauro and R. Mezzena and A. G. Monteduro and A. Nucciotti and L. Oberto and L. Origo and S. Pagano and V. Pierro and L. Piersanti and M. Rajteri and S. Rizzato and A. Vinante and M. Zannoni},
journal= {arXiv preprint arXiv:2207.12775},
year = {2022}
}
Comments
4 pages, 5 figures. Proceeding of Pisa15th Meeting conference. arXiv admin note: text overlap with arXiv:2111.03409