Linked from
The 30 pages that link to Superfluidity, each with the reason it gives.
HeliumRelated: Liquid helium-4 becomes superfluid below its lambda transition temperature.
Absolute zeroRelated: Several superfluids emerge only at temperatures near absolute zero.
BosonRelated: Bosonic helium-4 becomes superfluid below a critical temperature.
Liquid heliumBroader topic: Liquid helium-4 below the lambda point is the canonical superfluid.
Low-temperature physicsBroader topic: Cooling helium or atomic gases can produce frictionless flow.
Superfluid helium-4Narrower topic: Helium-4 is the canonical example of this broader phenomenon.
SupersolidRelated: Its defining flow behavior appears alongside the supersolid’s crystalline order.