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 …

We investigate the physics of dipolar bosons in a two-dimensional optical lattice. It is known
that due to the long-range character of dipole-dipole interaction, the ground state phase …

Using path integral Monte Carlo simulations we calculate exchange frequencies in bulk hcp
H e 4 as atoms undergo ring exchange. We fit the frequencies to a lattice model and …

The second layer of He 4 films adsorbed on a graphite substrate is an excellent
experimental platform to study the interplay between superfluid and structural orders. Here …

Although solid helium-4 (4He) may be a supersolid, it also exhibits many phenomena
unexpected in that context. We studied relaxation dynamics in the resonance frequency f (T) …

We investigate the rotational properties of a dipolar Bose-Einstein condensate trapped in a
toroidal geometry. Studying the ground states in the rotating frame and at fixed angular …

The recent torsional oscillator results of Kim and Chan show an anomalous mass
decoupling, interpreted by the authors as a supersolid phase transition, in solid He 4. We …

We investigate the quantum phases of polarized dipolar bosons loaded into a two-
dimensional square and three-dimensional cubic optical lattices. We show that the long …

We theoretically investigate a supersolid structure taking the form of stacked, disk-shaped
superfluid droplets connected via a dilute superfluid, in an antidipolar condensate. A phase …

Measurements of the moment of inertia by Kim and Chan have found that solid He 4 acts like
a supersolid at low temperatures. To understand the order in solid He 4, we have used path …