Superfluidity of quasi-2D He-4 droplets on graphite

Fuente: arXiv
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Autori principali: Kolevski, K. M., Boninsegni, M.
Natura: Preprint
Pubblicazione: 2024
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author Kolevski, K. M.
Boninsegni, M.
author_facet Kolevski, K. M.
Boninsegni, M.
contents The superfluid response of nanoscale size quasi-2D He-4 droplets adsorbed on a graphite substrate is investigated by computer simulations. It is found that clusters comprising as few as 7 atoms are stable at temperatures lower than < 0.15 K. Clusters of ~20 atoms or less are liquid-like and ~100% superfluid. As the size is increased, the central region crystallizes, forming the commensurate C_1/3 phase, with a surface sliver of superfluidity evolving into a perimetral 1D Luttinger liquid with increasing cluster size. The relevance to quasi-2D molecular spectroscopy and to transverse quantum superfluidity is discussed.
format Preprint
id arxiv_https___arxiv_org_abs_2410_18911
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Superfluidity of quasi-2D He-4 droplets on graphite
Kolevski, K. M.
Boninsegni, M.
Other Condensed Matter
The superfluid response of nanoscale size quasi-2D He-4 droplets adsorbed on a graphite substrate is investigated by computer simulations. It is found that clusters comprising as few as 7 atoms are stable at temperatures lower than < 0.15 K. Clusters of ~20 atoms or less are liquid-like and ~100% superfluid. As the size is increased, the central region crystallizes, forming the commensurate C_1/3 phase, with a surface sliver of superfluidity evolving into a perimetral 1D Luttinger liquid with increasing cluster size. The relevance to quasi-2D molecular spectroscopy and to transverse quantum superfluidity is discussed.
title Superfluidity of quasi-2D He-4 droplets on graphite
topic Other Condensed Matter
url https://arxiv.org/abs/2410.18911