Enhanced superfluid response of parahydrogen in nanoscale confinement

Abstract

Confinement has generally the effect of suppressing order in condensed matter. Indeed, phase transitions such as freezing, or the superfluid transition in liquid helium, occur at lower temperatures in confinement than they do in the bulk. We provide here an illustration of a physical setting in which the opposite takes place. Specifically, the enhancement of the superfluid response of parahydrogen confined to nanoscale size cavities is demonstrated by means of first principle computer simulations. Prospects to stabilize and observe the long sought but yet elusive bulk superfluid phase of parahydrogen in purposefully designed porous media are discussed.

arXiv comment5 pages, 4 figures in color

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Cited by in corpus (10)

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• Superfluid behavior of quasi-1D p-H${}_2$ inside carbon nanotube
• Absence of superfluidity in a parahydrogen film intercalated within a crystal of Na atoms
• Electron spin resonance study of atomic hydrogen stabilized in solid neon below 1K
• Quasi-one-dimensional ${}^4$He in nanopores
• Superfluidity of 4He nanoclusters in confinement
• Computer simulation study of nanoscale size parahydrogen clusters
• Microscopic pair potentials and the physical properties of the condensed phase of parahydrogen
• Superfluid response of two-dimensional parahydrogen clusters in confinement