论文标题

使用波动波参数放大器的超低噪声读数:达特沃尔项目

Ultra low noise readout with travelling wave parametric amplifiers: the DARTWARS project

论文作者

Rettaroli, A., 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., Greco, A., Guarcello, C., Labranca, D., Leo, A., Ligi, C., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mauro, C., Mezzena, R., Monteduro, A. G., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Pierro, V., Piersanti, L., Rajteri, M., Rizzato, S., Vinante, A., Zannoni, M.

论文摘要

Dartwars项目的目标是开发具有高增益,大带宽,高饱和功率和几乎量子限制的噪声的高性能创新波动参数放大器。其应用的目标频率区域为5-10 GHz,预期噪声温度约为600 mk。该发展遵循两种不同的方法,一种基于约瑟夫森连接,另一种基于超导体的动力电感。这项贡献主要集中在约瑟夫森行动波参数放大器上,其设计,初步测量以及约瑟夫森连接阵列阵列的同质性测试。

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.

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