DARTWARS 中的宽带参量放大
量子物理
2024-02-20 v1
摘要
超导参量放大器能够以极低的附加噪声放大微弱信号， potentially 达到量子极限放大。这一特性使其成为高保真量子计算领域的基本组件，并推动了量子传感领域的进步。特别是，行波参量放大器（TWPAs）由于其多吉赫兹的放大带宽，可能特别适合实际应用，而这是约瑟夫森参量放大器（JPAs）所缺乏的特征，尽管后者是更为成熟的技术。本文介绍了 DARTWARS（利用行波放大器进行探测器阵列读取）项目的最新进展，重点介绍了动能电流行波参量放大器（KITWPAs）的最新原型。该项目旨在开发一种能够实现 dB 放大的 KITWPA。为了提高生产良率，首批原型的长度和预期增益仅为最终器件的一半。在本文中，我们展示了其中一个半长度原型的表征结果。测量结果显示，对于长度为 mm 的 KITWPA，在 GHz 带宽内平均放大倍数约为 dB。
引用
@article{arxiv.2402.12045,
title = {Broadband parametric amplification in DARTWARS},
author = {Marco Faverzani and Pietro Campana and Rodolfo Carobene and Marco Gobbo and Felix Ahrens and Guerino Avallone and Carlo Barone and Matteo Borghesi and Silvia Capelli and Giovanni Carapella and Anna Paola Caricato and Luca Callegaro and Iacopo Carusotto and Andrea Celotto and Alessandro Cian and Alessandro D'Elia and Daniele Di Gioacchino and Emanuele Enrico and Paolo Falferi and Luca Fasolo and Elena Ferri and Giovanni Filatrella and Claudio Gatti and Damiano Giubertoni and Veronica Granata and Claudio Guarcello and Alessandro Irace 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 Moneduro and Roberto Moretti and Angelo Nucciotti and Luca Oberto and Luca Origo and Sergio Pagano and Alex Stephane Piedjou Komnang and Luca Piersanti and Alessio Rettaroli and Silvia Rizzato and Simone Tocci and Andrea Vinante and Mario Zannoni and Andrea Giachero},
journal= {arXiv preprint arXiv:2402.12045},
year = {2024}
}