OBSERVATION OF NON-CLASSICAL ROTATIONAL INERTIA IN SOLID HELIUM- AN INDICATION OF SUPERFLOW IN SOLIDS?

The phenomenon of Non-Classical Rotational Inertia, in which a body does not rotate with its rotating container, has been recently observed in solid Helium-4. This property is shared by superfluid liquid helium. The recent findings might be evidence of superflow in solids. Superfluidity or flow sans dissipation is commonly associated with liquids. Counter-intuitive as it may seem, quantum mechanics allows for a solid to exhibit superflow too