1995
DOI: 10.1103/physrevb.52.1193
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Structural and dynamical properties of superfluid helium: A density-functional approach

Abstract: We present a density functional for liquid He, properly accounting for the static response function and the phonon-roton dispersion in the uniform liquid. The functional is used to study both structural and dynamical properties of superIIIuid helium in various geometries. The equilibrium properties of the free surface, droplets, and films at zero temperature are calculated. Our predictions agree closely with the results of ab initio Monte Carlo calculations, when available. The introduction of a phenomenologic… Show more

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Cited by 303 publications
(404 citation statements)
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“…Following the procedure previously employed for liquid 4 He, in particular the works of Guirao et al, 19 Dalfovo et al, 2 and Ancilotto et al, 20 we present first a density functional for bulk liquid parahydrogen. The extension to inhomogeneous liquids will be considered in the next section.…”
Section: The Density Functionalmentioning
confidence: 99%
“…Following the procedure previously employed for liquid 4 He, in particular the works of Guirao et al, 19 Dalfovo et al, 2 and Ancilotto et al, 20 we present first a density functional for bulk liquid parahydrogen. The extension to inhomogeneous liquids will be considered in the next section.…”
Section: The Density Functionalmentioning
confidence: 99%
“…In this work, we have selected the full Orsay-Trento ͑OT͒ DF, 11 which is known to provide a quite accurate description of inhomogeneous structures of 4 He at T = 0. We can safely neglect gravitational effects in our calculations, since the capillary length a = ͓2 lv / ͑gm 0 ͔͒ 1/2 , with 0 = 0.0218 Å −3 the saturation density of 4 He and g the acceleration of gravity, is much larger than any linear dimension of the 4 He samples considered in the present work.…”
Section: Methodsmentioning
confidence: 99%
“…͑1͒. 22,27 In the case of 3 He, the particle and kinetic energy densities are obtained from the single particle wave functions…”
Section: ͑11͒mentioning
confidence: 99%