Variational monte carlo studies of the rate of transmission of an atomic helium beam through a slab of superfluid helium by a condensate mediated process

A. K. Setty, J W Halley, Charles E Campbell

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Abstract

We report variational Monte Carlo calculations which give amplitudes and phases of the reflected and transmitted components of states representing scattering of helium atoms normally incident on a superfluid 4He slab. The wave function describes a previously postulated condensate mediated process [J. W. Halley et al., Phys. Rev. Lett. 71, 2429 (1993)] and the results are consistent with uncertainty principle arguments suggesting that the transmission time for thin (but macroscopic) samples will be independent of slab thickness.

Original languageEnglish (US)
Pages (from-to)3930-3933
Number of pages4
JournalPhysical Review Letters
Volume79
Issue number20
DOIs
StatePublished - Jan 1 1997

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