Transport properties of normal liquid helium: Comparison of various methodologies

Eran Rabani*, Goran Krilov, David R. Reichman, B. J. Berne

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We revisit the problem of self-diffusion in normal liquid helium above the λ transition. Several different methods are applied to compute the velocity autocorrelation function. Since it is still impossible to determine the exact result for the velocity autocorrelation function from simulation, we appeal to the computation of short-time moments to determine the accuracy of the different approaches at short times. The main conclusion reached from our study is that both the quantum mode-coupling theory and the numerical analytic continuation approach must be regarded as a viable and competitive methods for the computation of dynamical properties of quantum systems.

Original languageEnglish
Article number184506
JournalJournal of Chemical Physics
Volume123
Issue number18
DOIs
StatePublished - 2005

Funding

FundersFunder number
National Science Foundation
Israel Science Foundation31/02-1

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