面向 DARTWARS 项目的 KI-TWPA 研发
量子物理
2024-02-20 v1 应用物理
摘要
在宽频带上达到量子极限噪声是未来用于中微子质量测量、暗物质搜寻和宇宙微波背景 (CMB) 测量的低温实验以及超导量子比特快速高保真读出的基本要求。近年来，约瑟夫森参量放大器 (JPA) 已展示出接近量子极限的噪声水平，但由于其带宽狭窄，每条线路只能并行读出少量探测器或量子比特。一种替代且创新的解决方案是基于利用行波概念的超导参量放大。在 DARTWARS（利用行波放大器的探测器阵列读出）项目中，我们为低温探测器和量子比特读出开发动能电流行波参量放大器 (KI-TWPA)。KI-TWPA 通常在三波混频 (3WM) 模式下运行，其特征是高增益、高饱和功率、大放大带宽以及近乎量子极限的噪声性能。DARTWARS 项目的目标是优化 KI-TWPA 设计、探索新材料并研究替代制造工艺，以提升放大器的整体性能。本文介绍了 DARTWARS 合作组在制造 KI-TWPA 工作原型方面取得的进展，涵盖了从制造到表征的全过程。
引用
@article{arxiv.2402.12295,
title = {Development of KI-TWPAs for the DARTWARS project},
author = {Felix Ahrens and Elena Ferri and Guerino Avallone and Carlo Barone and Matteo Borghesi and Luca Callegaro and Giovanni Carapella and Anna Paola Caricato and Iacopo Carusotto and Alessandro Cian and Alessandro D'Elia and Daniele Di Gioacchino and Emanuele Enrico and Paolo Falferi and Luca Fasolo and Marco Faverzani and Giovanni Filatrella and Claudio Gatti and Andrea Giachero and Damiano Giubertoni and Veronica Granata and Claudio Guarcello 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 Monteduro and Roberto Moretti and Angelo Nucciotti and Luca Oberto and Luca Origo and Sergio Pagano and Alex Stephane Piedjou and Luca Piersanti and Alessio Rettaroli and Silvia Rizzato and Simone Tocci and Andrea Vinante and Mario Zannoni},
journal= {arXiv preprint arXiv:2402.12295},
year = {2024}
}