Journal or Book Title
Physics Review Letters
On the basis of first-principles Monte Carlo simulations we find that the screw dislocation along the hexagonal axis of an hcp 4He crystal features a superfluid (at T→0) core. This is the first example of a regular quasi-one-dimensional supersolid—the phase featuring both translational and superfluid orders, and one of the cleanest cases of a Luttinger-liquid system. In contrast, the same type of screw dislocation in solid H2 is insulating.
Boninsegni, M; Kuklov; Pollet; Prokof'ev, Nikolai; Svistunov, Boris; and Troyer, "Luttinger Liquid in the Core of a Screw Dislocation in Helium-4" (2007). Physics Review Letters. 1177.
Retrieved from https://scholarworks.umass.edu/physics_faculty_pubs/1177