= Helium-3 superfluidity
{wiki=Superfluid_helium-3}
<Helium-3 superfluidity> involves <Cooper pairs> of <fermions>; <helium-4> atoms are <bosons>. Individual <helium-3> atoms do not undergo <Bose-Einstein condensation>. <The Extraordinary Phases of Liquid 3He by David Morris Lee>[Lee, 1996 lecture; 1997 reprint pp.645–647]{ref}
The <helium-3 superfluid discovery experiment> connects an unexpected <pressure> feature to a change in the state of a <liquid>. Its lesson is unusually instructive: finding a reproducible anomaly and identifying the material that changed are separate experimental achievements. <Pomeranchuk cooling> explains how the experiment reached its operating regime; an independent <nuclear magnetic resonance> channel distinguishes the phases.
Back to article page
