The path-integral formulation of the statistical mechanics of quantum many-body systems is
described, with the purpose of introducing practical techniques for the simulation of solids …

Since its discovery in 1938, superfluidity has been the subject of much investigation
because it provides a unique example of a macroscopic manifestation of quantum …

More than 40 years ago, Andreev, Lifshitz and Chester suggested the possible existence of
a peculiar solid phase of matter, the microscopic constituents of which can flow superfluidly …

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 …

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 …

We study the physics of soft-core bosons at zero temperature in two dimensions for a class
of potentials that could be realised in experiments with Rydberg dressed Bose-Einstein …

Jaynes-Cummings-Hubbard lattices provide unique properties for the study of correlated
phases as they exhibit convenient state preparation and measurement, as well as in situ …

The thermomechanical effect in superfluid helium is used to create an initial chemical
potential difference Δ μ 0 across a solid He 4 sample. This Δ μ 0 causes a flow of helium …

We study the equilibrium properties of an Ising model on a disordered random network
where the disorder can be quenched or annealed. The network consists of fourfold …

Using path-integral Monte Carlo simulations, we compute the ideal shear strength (ISS) on
the basal plane of hcp He 4. The failure mode upon reaching the ISS limit is characterized …