315 citations · 423 across the 6 of their papers we have counts for
6 papers
Quantum Evaporation from Superfluid Helium at Normal Incidence
F. Dalfovo, M. Guilleumas, A. Lastri +2
We study the scattering of atoms, rotons and phonons at the free surface of He at normal incidence and calculate the evaporation, condensation and reflection probabilities. Ass…
Quantum Evaporation from the Free Surface of Superfluid 4He
F. Dalfovo, A. Fracchetti, A. Lastri +2
The scattering of atoms and rotons at the free surface of superfluid 4He is studied in the framework of linearised time dependent mean field theory. The phenomenological Orsay-Tren…
Density functional calculations for 4He droplets
M. Casas, F. Dalfovo, A. Lastri +2
A novel density functional, which accounts correctly for the equation of state, the static response function and the phonon-roton dispersion in bulk liquid helium, is used to predi…
Structural and dynamical properties of superfluid helium: a density functional approach
F. Dalfovo, A. Lastri, L. Pricaupenko +2
We present a novel density functional for liquid 4He, properly accounting for the static response function and the phonon-roton dispersion in the uniform liquid. The functional is…
Density Functional in Liquid Helium: Recent Applications to Droplets and Surfaces
Franco Dalfovo, Andrea Lastri, Sandro Stringari
We present a new density functional, which is the result of a natural evolution and improvement of previous density functional theories for liquid helium. We focus on the key ingre…
Dispersion of Ripplons in Superfluid 4he
A. Lastri, F. Dalfovo, L. Pitaevskii +1
A detailed study of the dispersion law of surface excitations in liquid \hef at zero temperature is presented, with special emphasis to the short wave length region. The hybridizat…