The ongoing experimental and theoretical effort aimed at understanding nonclassical
rotational inertia in solid helium has sparked renewed interest in the supersolid phase of …

Physics | Free Full-Text | Saga of Superfluid Solids Next Article in Journal Fifty Years of the
Dynamical Casimir Effect Previous Article in Journal The Dynamical Casimir Effect in a …

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 …

This review addresses experiments on elasticity, plasticity, and flow of solid He 4 and He 3,
focusing on dislocations and other defects that are responsible for the unusual mechanical …

Ticks are of vast importance to livestock health, and contribute to conflicts between wildlife
conservation and agricultural interests; but factors driving tick infestation patterns on wild …

A number of recent experiments have used torsional oscillators to study the behavior of solid
helium. The oscillator frequencies increased at temperatures below 200 mK, an effect …

Macroscopic quantum properties of helium-4, one of the simplest and oldest elements in the
universe, continue to puzzle and amaze scientists. Supertransport in solid helium-4 is the …

We present precision neutron scattering measurements of the Bose-Einstein condensate
(BEC) fraction n 0 (T) and the atomic momentum distribution n☆(k) of liquid 4 He as a …

Using an apparatus that allows superfluid liquid 4 He to be in contact with hcp solid 4 He at
pressures greater than the bulk melting pressure of the solid, we have performed …

The anomalous temperature dependence of the period of a torsional oscillator (TO)
containing solid helium can be explained by the dislocation-vibration model. Namely, the …