Development of 400-μW cryogen-free dilution refrigerators for quantum experiments  

作　　者：关翔 樊洁 边勇波 程智刚 姬忠庆 Xiang Guan;Jie Fan;Yong-Bo Bian;Zhi-Gang Cheng;and Zhong-Qing Ji(Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [2]School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China

出　　处：《Chinese Physics B》2024年第7期28-35,共8页中国物理B（英文版）

基　　金：supported by the Beijing Commission of Science and Technology(Grant No.Z211100004021012);Special Research Assistant Program of the Chinese Academy of Sciences(Grant No.E3VP021RX4)。

摘　　要：We have successfully developed cryogen-free dilution refrigerators with medium cooling power that can be applied to quantum experiments. Breakthroughs have been made in some key technologies and components of heat switches and dilution units. Our prototype has been running continuously and stably for more than 100 hours below 10 m K, with a minimum temperature of 7.6 m K and a cooling power of 450 μW at 100 m K. At the same time, we have also made progress in the application of dilution refrigerators, such as quantum computing, low-temperature detector, and magnet integration. These indicators and test results indicate good prospects for application in physics, astronomy, and quantum information.

关 键 词：cryogen-free dilution refrigerator quantum computing low-temperature detector superconducting magnet 

分 类 号：TB651[一般工业技术—制冷工程] O413[理学—理论物理]