Studies of single-particle momentum distributions in light atoms and molecules are reviewed
with specific emphasis on experimental measurements using the deep inelastic neutron …

The momentum distribution and atomic kinetic energy of the two isotopes of helium in a
liquid mixture at temperature T= 2 K are computed by quantum Monte Carlo simulations …

New perspectives for epithermal neutron spectroscopy are being opened up by the
development of the Resonance Detector (RD) and its use on inverse geometry time of flight …

We investigate strongly correlated many-body systems composed of bosons and fermions
with a fully quantum treatment using the path-integral ground state method, PIGS. To …

We have devised a simple and practical method for the extraction of single-particle mean
kinetic energy from the Helmholtz free energy, when this quantity is known for a pair of …

We present neutron-scattering measurements of the momentum distribution of liquid He 3-
He 4 mixtures. The experiments were performed at wave vectors Q, 26⩽ Q⩽ 29 Å− 1, on the …

This paper reports a study of the short-time dynamics of helium confined in silica nanopores
(xerogel powder), with average pore diameters of 24 and 160 Å. The longitudinal …

Momentum distributions and mean kinetic energies of helium atoms, in pure fluid 3 He and 3
He–4 He mixtures, at T= 2 K and 3 He concentrations of x= 0.20 and x= 1.00, are presented …

We investigate several quantum many-body systems using the density matrix projection
method. We consider a detailed proof of concept with the harmonic oscillator and apply the …

Abstract della tesi di dottorato in FISICA di Antonino Pietropaolo Titolo: Research and
development of g detectors for neutron scattering at electron Volt energies on VESUVIO …