cryogen-free dilution refrigerator system

无制冷剂稀释制冷系统

• 批准号: 427149474
• 金额: --
• 依托单位: Universität Stuttgart
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/427149474?language=en
• 关键词: cryogen; free; dilution; refrigerator; system

With the cryostat, quantum systems or hybrid quantum systems will be cooled to below 100mK to increase their coherence times and to achieve cooling to their quantum mechanical ground state. As an example, the device will be used to cool down mechanical oscillators that are coupled to spins in solid-state materials and to provide a prerequisite for spin-cooling of mechanical resonators. Furthermore, the cooling efficiency of various coupled systems will be investigated to test the thermodynamic limits of cooling efficiency for different thermal baths. The cryostat will also serve to cool various spin systems at high magnetic fields to low temperatures in order to extend their relaxation time.

利用低温恒温器，量子系统或混合量子系统将被冷却到100 mK以下，以增加它们的相干时间并实现冷却到它们的量子力学基态。作为一个例子，该设备将用于冷却耦合到固态材料中的自旋的机械振荡器，并为机械谐振器的自旋冷却提供先决条件。此外，各种耦合系统的冷却效率将被调查，以测试不同的热浴冷却效率的热力学极限。低温恒温器还将用于将高磁场下的各种自旋系统冷却到低温，以延长其弛豫时间。