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Finite H2 concentrations in superfluid 4He

Abstract

We have studied the solubility of molecular hydrogen in bulk liquid 4^4He at zero temperature using the diffusion Monte Carlo method and realistic interatomic potentials between the different species of the mixture. Around the 4^4He equilibrium density, the H_2 molecules clusterize in liquid-like drops blocking the existence of a uniform dilution. On the contrary, at higher densities the cluster formation is less feasible and metastable dilute solutions may exist.Comment: 2 pages, 2 eps figures, contribution to the LT22 Conferenc

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    Last time updated on 02/01/2020