Ordered mesoporous polymers have been prepared by replication of colloidal crystals made
from silica spheres 35 nanometers in diameter. The pores in the colloidal crystals were filled …

The influence of a system scale on its physicochemical properties is still a matter of
discussion. Particularly, in nanometre-confining porous media, the structure [1, 2], dynamics …

Using inelastic neutron scattering, we have observed well-defined phonon-roton (p− r)
excitations in superfluid 4 He in Vycor over a wide wave-vector range, 0.3≤ Q≤ 2.15 Å− 1 …

We present precision neutron scattering measurements of the dynamic structure factor S (Q,
ω) and the elementary excitations of liquid 4 He immersed in aerogel and Vycor. In both …

Inelastic neutron scattering has been used to probe the collective excitations of superfluid
helium in porous Vycor glass for 0.5≤ TK≤ 1.9. The confined roton displays a temperature …

This paper reports an inelastic neutron scattering study of superfluid helium confined with
highly monodisperse, smooth, and unidimensional silica pores only a few nanometers in …

We present a theoretical study of the Berezinskii-Kosterlitz-Thouless transition of a two-
dimensional superfluid in the presence of an externally imposed density modulation along a …

Low temperature structural and superfluid properties of He 4 confined in cylindrical
nanopores are theoretically investigated by means of first-principle quantum Monte Carlo …

We report the first observation of two-dimensional layer modes in both fully filled and
partially filled aerogel. Using complementary high-energy resolution and high statistical …

We present neutron inelastic-scattering measurements of superfluid 4 He in porous xerogel
glass. Two-dimensional scattering at all wave vectors is observed. Six pore-filling fractions …