Finite H2 concentrations in superfluid 4He
arXiv:cond-mat/9906262 · doi:10.1016/S0921-4526(99)02062-1
Abstract
We have studied the solubility of molecular hydrogen in bulk liquid He at zero temperature using the diffusion Monte Carlo method and realistic interatomic potentials between the different species of the mixture. Around the He 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.
2 pages, 2 eps figures, contribution to the LT22 Conference