Quantum crystals abound in the whole range of solid-state species. Below a certain
threshold temperature the physical behavior of rare gases (He 4 and Ne), molecular solids …

accepted July 30, 2008; published November 10, 2008) The possibility of a supersolid state
of matter, ie, a crystalline solid exhibiting superfluid properties, first appeared in theoretical …

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 …

We study the low-temperature properties of a He 4 fluid confined in nanopores, using large-
scale quantum Monte Carlo simulations with realistic He-He and He-pore interactions. In the …

Motivated by the search for an experimentally realizable high density and strongly
interacting one-dimensional quantum liquid, we have performed quantum Monte Carlo …

In a calometric measurement of infiltration and defiltration of pressurized liquid in a
hydrophobic MCM41, it is observed that in nanopores the energy change between solid and …

Isothermal-isobaric simulations on the ordering behavior of hard spheres upon confinement
are presented. The radii of the confining cylinders go from 1.1 to 2 in units of the diameters of …

We present neutron scattering measurements of the phonon-roton and layer modes of liquid
helium confined in 28 Å diameter nanopores of FSM-16. The goal is to determine the …

We present path integral Monte Carlo (PIMC) calculations of the superfluid fraction, ρS/ρ,
and the one-body density matrix (OBDM)(Bose-Einstein condensation (BEC)) of liquid 4He …

As helium-4 is cooled below 2.17 K it undergoes a phase transition to a fundamentally
quantum mechanical state of matter known as a superfluid which supports flow without …