Superfluid

Superfluid is a quantum fluid that flows on its own and so it seems as if it has zero viscosity. Helium becomes a superfluid at very low temperatures (less than -270°C). The transition from a normal fluid to a superfluid is studied by considering Bose statistics (instead of Fermi statistics) and the process is explained as being due to Bose-Einstein condensation (Bosonization).

Reference

• http://www.aip.org/physnews/graphics/html/helium3.htm