A solid is called'supersolid'if it exhibits superfluid properties. Supersolidity is a paradoxical
phenomenon whose understanding has become a major challenge since 2004, when Kim …

Superfluidity—liquid flow without friction—is familiar in helium. The first evidence for
'supersolidity', its analogue in quantum solids, came from torsional oscillator measurements …

On the basis of first-principles Monte Carlo simulations we find that the screw dislocation
along the hexagonal axis of an hcp He 4 crystal features a superfluid (at T→ 0) core. This is …

We study a supersolid in the context of a Gross-Pitaevskii theory with a nonlocal effective
potential. We employ a homogenization technique which allows us to calculate the elastic …

The self-organization of a Bose-Einstein condensate (BEC) in a transversely pumped optical
cavity is a process akin to crystallization: when pumped by a laser of sufficient intensity, the …

For nearly half a century the supersolid phase of matter has remained mysterious, not only
eluding experimental observation, but also generating a great deal of controversy among …

The supersolid state of matter, exhibiting nondissipative flow in solids, has been elusive for
35 years. The recent discovery of a nonclassical moment of inertia in solid He 4 by Kim and …

Measurements that document a number of the characteristics of^ 4 He 4 He mass flux
through a cell filled with solid^ 4 He 4 He carried out at the University of Massachusetts and …

Here we provide an overview of the status of the field of solid 4 He with a focus on the recent
theoretical and experimental activities stimulated by the 2004 experiments of Kim and Chan …

A bstract A supersolid is a system that presents long-range order and shear rigidity as a
solid but which also supports a non-dissipative superflow as a superfluid. From an effective …