Experimental Investigations of Fermi Liquids

正常流体氦- 3的零声衰减将在高达500兆赫的频率下进行研究，以明确地测试朗道对量子吸收机制的预测。利用超声直接测量超流体氦- 3b的序参量能隙。UBe13和UPt3的超导性能将在毫开尔文温度下进行各种测量，以积极确定它们的配对机制。这项研究将需要开发用于毫开尔文范围的高频声学技术。

Zero sound attenuation in normal fluid helium-three will be studied at frequencies up to 500 MHZ to unambiguously test Landau's prediction of the quantum absorption regime. Ultrasound will be used to directly measure the order parameter energy gap of superfluid helium-three-B. Various measurements of the superconducting properties of UBe13 and UPt3 will be conducted at millikelvin temperatures to positively identify their pairing mechanisms. The research will require the development of high frequency acoustic techniques for the millikelvin regime.