Superfluidity in a doped helium droplet

E. W. Draeger; D. M. Ceperley

Superfluidity in a doped helium droplet

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Abstract

A microscopic path-integral Monte Carlo (PIMC) estimator of the local contribution to the total superfluid response is presented. Simulations of ⁴He droplets containing linear (HCN)₃ isomers show a significant reduction in the superfluid response of the first solvation. Furthermore, this reduction is shown to be due in part to thermal excitations, in addition to the temperature-independent normal fluid assumed to be induced by the anisotropic HCN-helium interaction potential.

Original language	English (US)
Article number	065301
Pages (from-to)	065301/1-065301/4
Journal	Physical review letters
Volume	90
Issue number	6
State	Published - Feb 14 2003

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Physics and Astronomy(all)

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title = "Superfluidity in a doped helium droplet",

abstract = "A microscopic path-integral Monte Carlo (PIMC) estimator of the local contribution to the total superfluid response is presented. Simulations of 4He droplets containing linear (HCN)3 isomers show a significant reduction in the superfluid response of the first solvation. Furthermore, this reduction is shown to be due in part to thermal excitations, in addition to the temperature-independent normal fluid assumed to be induced by the anisotropic HCN-helium interaction potential.",

author = "Draeger, {E. W.} and Ceperley, {D. M.}",

note = "Funding Information: The authors acknowledge K. Lehmann, B. Whaley, and M. Holzmann for useful discussions. The computations were carried out at NCSA and the IBM cluster at the Materials Computation Center and was supported by the NASA Microgravity Research Division, Fundamental Physics Program. This work was also performed under the auspices of the U.S. Department of Energy by University of California Lawrence Livermore National Laboratory under Contract No. W-7405-Eng-48.",

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language = "English (US)",

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T1 - Superfluidity in a doped helium droplet

AU - Draeger, E. W.

AU - Ceperley, D. M.

N1 - Funding Information: The authors acknowledge K. Lehmann, B. Whaley, and M. Holzmann for useful discussions. The computations were carried out at NCSA and the IBM cluster at the Materials Computation Center and was supported by the NASA Microgravity Research Division, Fundamental Physics Program. This work was also performed under the auspices of the U.S. Department of Energy by University of California Lawrence Livermore National Laboratory under Contract No. W-7405-Eng-48.

PY - 2003/2/14

Y1 - 2003/2/14

N2 - A microscopic path-integral Monte Carlo (PIMC) estimator of the local contribution to the total superfluid response is presented. Simulations of 4He droplets containing linear (HCN)3 isomers show a significant reduction in the superfluid response of the first solvation. Furthermore, this reduction is shown to be due in part to thermal excitations, in addition to the temperature-independent normal fluid assumed to be induced by the anisotropic HCN-helium interaction potential.

AB - A microscopic path-integral Monte Carlo (PIMC) estimator of the local contribution to the total superfluid response is presented. Simulations of 4He droplets containing linear (HCN)3 isomers show a significant reduction in the superfluid response of the first solvation. Furthermore, this reduction is shown to be due in part to thermal excitations, in addition to the temperature-independent normal fluid assumed to be induced by the anisotropic HCN-helium interaction potential.

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JO - Physical Review Letters

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Superfluidity in a doped helium droplet

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