1995

Structural and dynamical properties of superfluid helium: a density functional approach

F. Dalfovo 1, A. Lastri 1, L. Pricaupenko 2, S. Stringari 1, J. Treiner 2 Physical Review B 52 (1995) 1193-1209 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 used to study both structural and dynamical properties of superfluid helium in various geometries. The equilibrium properties …

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Random Magnetic Impurities and the Landau Problem

Jean Desbois 1, Cyril Furtlehner 1, Stephane Ouvry 1 Nuclear Physics B 453 (1995) 759-776 The 2-dimensional density of states of an electron is studied for a Poissonian random distribution of point vortices carrying $\\alpha$ flux in unit of the quantum of flux. It is shown that, for any given density of impurities, there is a transition, when $\\alpha\\simeq 0.3-0.4$, from …

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