Original scientific paper
Three-body correlation effects in the spectrum of elementary excitations in liquid 4He, II
Srećko Kilić
; Department of Civil Engineering, University of Split, Yugoslavia
Abstract
It was found that it is not possible to describe accurately the roton states in the spectrum of elementary excitations of liquid 4He taking into account one and two-phonon functions. The effect of three-body correlations in this basis was found to be insignificant. It was also shown that the basic relation, obtained earlier, compared with the standard Brillouin-Winger perturbation procedure is not an improvement.
Keywords
Hrčak ID:
329219
URI
Publication date:
3.12.1984.
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