ABSTRACT

Superfluidity is the jewel in the crown of low temperature physics. When temperatures are low enough, every substance in thermal equilibrium must become ordered. Since some materials remain fluid to the lowest temperatures, it is a fascinating question as to how this ordering can take place. One possibility is the formation of a superfluid state, a

chapter 1|24 pages

What happens at low temperatures?

chapter 2|29 pages

Liquid 4He

chapter 3|18 pages

Experimental techniques

chapter 4|42 pages

Superconductivity

chapter 5|35 pages

Liquid 3He