Sat, 26 Jul 2008 06:14:38 BST CiteULike: dchen's library [897 articles] http://www.citeulike.org/user/dchen/article/2749938 CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dchen/article/2749938 <i>Physical Review Letters, Vol. 99, No. 3. (2007)</i><br /><br />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 T0) 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. Luttinger Liquid in the Core of a Screw Dislocation in Helium-4 M Boninsegni AB Kuklov L Pollet NV Prokof'ev BV Svistunov M Troyer doi:10.1103/PhysRevLett.99.035301 Physical Review Letters, Vol. 99, No. 3. (2007) 2008-05-03T19:31:03-00:00 2007 Physical Review Letters 99 3 APS 2007 focus material structure