Urgent request for a cryogen-free, variable-temperature and high-field optical cryostat for studies of nanomechenical resonators and mesoscopic superconductors

迫切需要一种无制冷剂、可变温度和高场光学低温恒温器，用于纳米机械谐振器和介观超导体的研究

• 批准号: 406628-2011
• 负责人: Davis, John
• 金额: $ 10.93万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=472523
• 关键词: Urgent; request; cryogen; free; variable

We are requesting a state-of-the-art apparatus that will enable optical measurements of nanomechanical objects in extreme environments: high vacuum, low temperatures and high magnetic fields. This combination of controllable parameters is vital to our exploration of nanoscale phenomena and will enable us to study quantum mechanics in new ways. One of our goals is to explore the crossover from quantum to classical mechanics in nanomechanical resonators. Although nanomechanical resonators might sound small, in this case these resonators have roughly ten million times as many constituent atoms as the largest objects to have previously shown quantum properties. Another goal of our research is to find new physics in nanoscale superconductors that result from their size and geometry. To accomplish these goals we have developed nanomechanical devices to which we incorporate minuscule amounts of metals and superconductors. Our nanomechanical devices can sensitively reveal the properties of these tiny metals and superconductors with fantastic sensitivity because of the remarkable advantages of nanotechnology. This research will lead us to new physics and new scientific understanding. Without this apparatus we would not be able to pursue such exciting science.

我们正在寻求一种最先进的设备，能够在极端环境中对纳米机械物体进行光学测量：高真空，低温和高磁场。 这种可控参数的组合对我们探索纳米现象至关重要，并将使我们能够以新的方式研究量子力学。 我们的目标之一是探索纳米机械谐振器从量子力学到经典力学的交叉。 虽然纳米机械共振器听起来很小，但在这种情况下，这些共振器的组成原子大约是先前显示量子特性的最大物体的1000万倍。我们研究的另一个目标是在纳米级超导体中发现新的物理学，这些物理学是由它们的尺寸和几何形状引起的。 为了实现这些目标，我们开发了纳米机械设备，其中加入了微量的金属和超导体。 由于纳米技术的显著优势，我们的纳米机械设备可以灵敏地揭示这些微小金属和超导体的特性。 这项研究将引领我们走向新的物理学和新的科学认识。 如果没有这个仪器，我们就不可能从事如此激动人心的科学研究。