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arXiv · 0705.2967

Luttinger Liquid in the Core of Screw Dislocation in Helium-4

M. Boninsegni·A. B. Kuklov·L. Pollet·N. V. Prokof'ev·B. V. Svistunov·M. Troyer
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Abstract

On the basis of first-principle Monte Carlo simulations we find that the screw dislocation along the hexagonal axis of an hcp He4 crystal features a superfluid core. This is the first example of a regular quasi-one-dimensional supersolid, and one of the cleanest cases of a regular Luttinger-liquid system. In contrast, the same type of screw dislocation in solid Hydrogen is insulating.

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M. Boninsegni, A. B. Kuklov, L. Pollet, N. V. Prokof'ev, B. V. Svistunov, M. Troyer. 2007-07-27. Luttinger Liquid in the Core of Screw Dislocation in Helium-4. https://doi.org/10.1103/physrevlett.99.035301

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