Path-integral Monte Carlo study of low-temperature He4 clusters

Philippe Sindzingre, Michael L. Klein, David M. Ceperley

Research output: Contribution to journalArticlepeer-review


Path-integral Monte Carlo calculations have been used to study He4 clusters at low temperatures. We develop a fluctuation formula for the superfluid fraction in terms of a projected area swept out by a path. Manifestations of superfluid behavior are shown to exist in a cluster of 64 atoms and a remnant of the transition persists in a cluster of 128 atoms. The temperature dependence of the superfluid fraction is similar to that observed in the liquid.

Original languageEnglish (US)
Pages (from-to)1601-1604
Number of pages4
JournalPhysical review letters
Issue number15
StatePublished - 1989

ASJC Scopus subject areas

  • General Physics and Astronomy


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