期刊
CENTRAL EUROPEAN JOURNAL OF PHYSICS
卷 6, 期 1, 页码 33-37出版社
VERSITA
DOI: 10.2478/s11534-008-0019-z
关键词
molecular clusters; para-hydrogen clusters
An improved Monte Carlo diffusion model is used to calculate the ground state energies and chemical potentials of parahydrogen clusters of three to forty molecules, using two different p-H(2)-p-H(2) interactions. The improvement is due to three-body correlations in the importance sampling, to the time step adjustment and to a better estimation of statistical errors. In contrast to path-integral Monte Carlo results, this method predicts no magic clusters other than that with thirteen molecules.
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