117 citations · 216 across the 10 of their papers we have counts for
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Excitation spectrum in two-dimensional superfluid 4He
F. Arrigoni, E. Vitali, D. E. Galli +1
In this work we perform an ab-initio study of an ideal two-dimensional sample of 4He atoms, a model for 4He films adsorbed on several kinds of substrates. Starting from a realistic…
Dynamic structure factor for 3He in two-dimensions
M. Nava, D. E. Galli, S. Moroni +1
Recent neutron scattering experiments on 3He films have observed a zero-sound mode, its dispersion relation and its merging with -and possibly emerging from- the particle-hole cont…
Quantum dislocations: the fate of multiple vacancies in two dimensional solid 4He
M. Rossi, E. Vitali, D. E. Galli +1
Defects are believed to play a fundamental role in the supersolid state of 4He. We have studied solid 4He in two dimensions (2D) as function of the number of vacancies n_v, up to 3…
Ab-initio low-energy dynamics of superfluid and solid 4He
E. Vitali, M. Rossi, L. Reatto +1
We have extracted information about real time dynamics of 4He systems from noisy imaginary time correlation functions f(tau) computed via Quantum Monte Carlo (QMC): production and…
Microscopic studies of solid 4He with Path Integral Projector Monte Carlo
M. Rossi, R. Rota, E. Vitali +2
We have investigated the ground state properties of solid He with the Shadow Path Integral Ground State method. This exact T=0 K projector method allows to describes quantum so…