Quasi-1D parahydrogen in nanopores

Abstract

The low temperature physics of parahydrogen (ph2) confined in cylindrical channels of diameter of the order of 1 nm is studied theoretically by Quantum Monte Carlo simulations. On varying the attractive strength of the wall of the cylindrical pore, as well as its diameter, the equilibrium phase evolves from a single quasi-1D channel along the axis, to a concentric cylindrical shell. It is found that the quasi-1D system retains a strong propensity to crystallization, even though on weakly attractive substrates quantum fluctuations reduce somewhat such a tendency compared to the purely 1D system. No evidence of a topologically protected superfluid phase (in the Luttinger sense) is observed. Implications on the possible existence of a bulk superfluid phase of parahydrogen are discussed

arXiv comment6 pages, 5 figures, 1 table

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Cited by in corpus (14)

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• Luttinger parameter of quasi-one-dimensional para-H2
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• Dipolar bosons in one dimension: the case of longitudinal dipole alignment
• Superfluid response of parahydrogen clusters in superfluid He-4
• Computer simulation study of nanoscale size parahydrogen clusters
• Microscopic pair potentials and the physical properties of the condensed phase of parahydrogen
• Quasi-2D parahydrogen: On the verge of turning superfluid?
• Adsorption of parahydrogen on graphene
• Computer simulations of supercooled liquid hydrogen mixtures and the possible crystallization slowdown
• Quantum Monte Carlo study of strongly interacting bosonic one-dimensional systems in periodic potentials