<i>Colloquium</i>: Supersolids: What and where are they?
<i>Colloquium</i>: Supersolids: What and where are they?
The ongoing experimental and theoretical effort aimed at understanding non-classical rotational inertia in solid helium, has sparked renewed interest in the supersolid phase of matter, its microscopic origin and character, and its experimental detection. The purpose of this colloquium is a) to provide a general theoretical framework for the phenomenon …