A supersolid is a spatially ordered superfluid.

Phase diagram for 4He

When quantum fluids , like helium-4, are cooled below a certain characteristic temperature, they undergo the superfluid transition and enter a state of 0 viscosity. It has been theorised that quantum fluids can undergo a similar transition from the solid phase.

See also

• Bose-Einstein Condensate
• Superfluid

External link

• Nature story on a supersolid experiment