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 …

The mass transport properties along dislocation cores in hcp He 4 are revisited by
considering two types of edge dislocations as well as a screw dislocation, using a fully …

We report the results of flow experiments in which two chambers containing solid He 4 are
connected by a superfluid Vycor channel. At low temperatures and pressures, mechanically …

At a pressure of∼ 25.7 bar, the flux F carried by solid He 4 for T> 100 mK depends on the
net chemical potential difference between two reservoirs in series with the solid, Δ μ, and …

The mass flux, F, carried by as-grown solid He 4 in the range 25.6–26.3 bar rises with falling
temperature, and at a concentration-dependent temperature, T d, the flux decreases sharply …

We argue that the three key phenomena recently observed in solid He 4—mass
supertransport, anomalous isochoric compressibility (syringe effect), and giant plasticity …

The resonant period drop observed at low temperatures in torsional oscillators containing
solid helium had been interpreted as a signature of a supersolid. However, it was found that …

The dislocation model of the supersolid state of 4He was proposed in 1987 by one of the
authors of the review. The model obtained strong support by numerous experimental and …

Using path-integral Monte Carlo simulations, we assess the core structure and mobility of
the screw and edge basal-plane dislocations in hcp He 4. Our findings provide key insights …