论文标题
高性能无低温的微底平台
High performance cryogen-free microkelvin platform
论文作者
论文摘要
改善了微底温度温度状态的可访问性对于未来在量子材料方面的研究很重要。用于量子信息科学；以及用于量子传感器的应用。在这里，我们报告了基于核电磁化阶段的Microkelvin平台的设计和性能，该阶段是设计和优化的，可在不含高温的稀释冰箱上进行操作。 PRNI5用作主要制冷剂。该平台为在超低温度（低电磁噪声环境）下安装实验提供了较大的面积。使用当前的传感噪声温度法来表征性能。已经达到了低至395美元的$ k的温度，并建立了一项方案，可以在95％的时间内操作低于1 MK的实验，从而为广泛的科学应用提供有效的无低温微粒环境
Improved accessibility to the microkelvin temperature regime is important for future research in quantum materials; for quantum information science; and for applications of quantum sensors. Here we report the design and performance of a microkelvin platform based on a nuclear demagnetization stage, engineered and well optimized for operation on a standard cryogen-free dilution refrigerator. PrNi5 is used as the dominant refrigerant. The platform provides a large area for mounting experiments in an ultralow temperature, low electromagnetic noise environment. The performance is characterized using current sensing noise thermometry. Temperatures as low as 395 $μ$K have been reached, and a protocol has been established in which it is possible to operate experiments below 1 mK for 95% of the time, providing an efficient cryogen-free microkelvin environment for a wide range of science applications
