SUPERFLUID ³ He, A TWO-FLUID SYSTEM, WITH THE NORMAL-FLUID DYNAMICS DOMINATED BY ANDREEV REFLECTION
Pickett G.R.

Поступила в редакцию: 26 Мая 2014

DOI: 10.7868/S0044451014120062

DJVU (448K)

PDF (3001.2K)

As a specific offering towards his festschrift, we present a review the various properties of the excitation gas in superfluid ³ He, which depend on Andreev reflection. This phenomenon dominates many of the properties of the normal fluid, especially at the lowest temperatures. We outline the ideas behind this dominance and describe a sample of the many experiments in this system which the operation of Andreev reflection has made possible, from temperature measurement, particle detection, vortex imaging to cosmological analogues. Contribution for the JETP special issue in honor of A. F. Andreev's 75th birthday}