Superfluid Helium Three and Disordered Materials at Ultralow Temperatures

超低温下的超流氦三和无序材料

• 批准号: 8901701
• 负责人: Christopher Gould
• 金额: $ 19.9万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-07-15 至 1992-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8901701&HistoricalAwards=false
• 关键词: Superfluid; Helium; Three; Disordered; Materials

They propose to measure the absolute thermodynamic phase diagram of superfluid Helium three, focusing principally upon the magnetic field and pressure dependences of the transition between the superfluid A and B phases. From this measurement they will be able to extract thermodynamic as well as microscopic data on the superfluid which has been unavailable to date. They further propose to continue measurements already in progress studying the limits to superflow in superfluid Helium three caused by textural transitions in unrestricted geometries. Finally they propose to continue their study of the thermalization rate of electrons taken out of equilibrium in two dimensional conducting systems at ultralow temperatures.

他们建议测量绝对热力学相图 超流氦三的研究，主要集中在 磁场和压力之间的过渡依赖性 超流A和B相。 通过这种测量， 能够提取热力学以及微观数据， 迄今为止还没有的超流体 他们还建议继续进行已经在进行的测量 研究超流氦三的超流极限 这是由无限制几何形状中的纹理过渡引起的。 最后，他们建议继续研究 两个电子脱离平衡态的热化率 超低温下的三维导电系统。