Superfluid response of parahydrogen clusters in superfluid He-4
arXiv:1912.11327 · doi:10.1007/s10909-020-02493-4
Abstract
First principle computer simulations yield evidence of a finite superfluid response at low temperature of a parahydrogen cluster of 15 molecules in bulk superfluid He-4. The superfluid fraction is worth ~44% at T=0.25 K, growing to about 66% at T=0.15 K, i.e., it is substantially reduced compared to that of the same cluster in vacuo, due to higher molecular localization. The implications of these findings on the interpretation of experiments with linear molecules embedded in parahydrogen clusters immersed in superfluid helium are discussed.
arXiv commentFour pages, two figures in color
References in corpus (17)
- Worm Algorithm and Diagrammatic Monte Carlo: A New Approach to Continuous-Space Path Integral Monte Carlo Simulations
- Worm Algorithm for Continuous-space Path Integral Monte Carlo Simulations
- Luttinger Liquid in the Core of Screw Dislocation in Helium-4
- Superfluidity and Quantum Melting of para-Hydrogen clusters
- Structure, superfluidity, and quantum melting of hydrogen clusters
- A molecular superfluid: non-classical rotations in doped para-hydrogen clusters
- Local Superfluidity of Parahydrogen Clusters
- Permutation sampling in Path Integral Monte Carlo
- Ground State Phase Diagram of Parahydrogen in One Dimension
- Low temperature phase diagram of condensed para-Hydrogen in two dimensions
- Search for Superfluidity in Solid Hydrogen
- On the possible "supersolid" character of parahydrogen clusters
- Superfluidity of isotopically doped parahydrogen clusters
- Search for superfluidity in supercooled liquid parahydrogen
- Quasi-1D parahydrogen in nanopores
- Disorder and the elusive superfluid phase of para-hydrogen
- Absence of superfluidity in a parahydrogen film intercalated within a crystal of Na atoms
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- Isotopic separation in mixed clusters of molecular hydrogen