用于DARTWARS项目的KI-TWPA开发
Development of KI-TWPAs for the DARTWARS project
AI总结：
DARTWARS项目开发了动力学电感行波参量放大器（KI-TWPA），通过三波混频模式实现高增益、宽带宽和近量子极限噪声性能，用于低温探测器和超导量子比特读出，本文介绍了其原型制造与表征的进展。
摘要：
在宽频带内实现量子极限噪声是未来低温实验的基本要求，这些实验包括中微子质量测量、暗物质搜寻、宇宙微波背景（CMB）测量，以及超导量子比特的快速高保真读出。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，但由于其带宽较窄，每条传输线只能并行读出少量探测器或量子比特。一种创新的替代方案是基于行波概念的超导参量放大。在DARTWARS（采用行波放大器的探测器阵列读出，Detector Array Readout with Travelling Wave AmplifieRS）项目中，我们开发了动力学电感行波参量放大器（KI-TWPAs），用于低温探测器和量子比特读出。KI-TWPAs通常在三波混频（3WM）模式下运行，具有高增益、高饱和功率、大放大带宽和接近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。在本文中，我们介绍了DARTWARS合作团队在制造和表征方面为生产可运行的KI-TWPA原型所取得的进展。
英文摘要：
Noise at the quantum limit over a broad bandwidth is a fundamental requirement for future cryogenic experiments for neutrino mass measurements, dark matter searches and Cosmic Microwave Background (CMB) measurements as well as for fast high-fidelity read-out of superconducting qubits. In the last years, Josephson Parametric Amplifiers (JPA) have demonstrated noise levels close to the quantum limit, but due to their narrow bandwidth, only few detectors or qubits per line can be read out in parallel. An alternative and innovative solution is based on superconducting parametric amplification exploiting the travelling-wave concept. Within the DARTWARS (Detector Array Readout with Travelling Wave AmplifieRS) project, we develop Kinetic Inductance Travelling-Wave Parametric Amplifiers (KI-TWPAs) for low temperature detectors and qubit read-out. KI-TWPAs are typically operated in a threewave mixing (3WM) mode and are characterised by a high gain, a high saturation power, a large amplification bandwidth and nearly quantum limited noise performance. The goal of the DARTWARS project is to optimise the KI-TWPA design, explore new materials, and investigate alternative fabrication processes in order to enhance the overall performance of the amplifier. In this contribution we present the advancements made by the DARTWARS collaboration to produce a working prototype of a KI-TWPA, from the fabrication to the characterisation.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
