Superfluidity and Quantum Melting of para-Hydrogen clusters
Fabio Mezzacapo, Massimo Boninsegni
TL;DR
This study uses Path Integral Monte Carlo simulations to explore the structural and superfluid properties of para-Hydrogen clusters up to 40 molecules at low temperatures, revealing non-monotonic superfluid behavior and quantum melting phenomena.
Contribution
It provides new insights into the size-dependent superfluidity and quantum melting in para-Hydrogen clusters through detailed computational analysis.
Findings
Superfluid fraction varies non-monotonically for 22 < N < 30.
Superfluidity observed in clusters up to 27 molecules.
Quantum melting occurs in some clusters within the temperature range.
Abstract
Structural and superfluid properties of para-Hydrogen clusters of size up to N=40 molecules, are studied at low temperature (0.5 K < T < 4 K) by Path Integral Monte Carlo simulations. The superfluid fraction displays an interesting, non-monotonic behavior for 22 < N < 30. We interpret this dependence in terms of variations with N of the cluster structure. Superfluidity is observed at low T in clusters of as many as 27 molecules; in the temperature range considered here, quantum melting is observed in some clusters, which freeze at high temperature.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.