Luttinger liquid in the core of a screw dislocation in helium-4

被引：180

作者：

Boninsegni, M. ^{[1
]}

Kuklov, A. B.

Pollet, L.

Prokof'ev, N. V.

Svistunov, B. V.

Troyer, M.

机构：

[1] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada

[2] CUNY Coll Staten Isl, Dept Engn Sci & Phys, Staten Isl, NY 10314 USA

[3] ETH, CH-8093 Zurich, Switzerland

[4] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA

[5] Russian Res Ctr, Kurchatov Inst, Moscow 123182, Russia

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.99.035301

中图分类号：

O4 [物理学];

学科分类号：

0702 [物理学];

摘要：

On the basis of first-principles Monte Carlo simulations we find that the screw dislocation along the hexagonal axis of an hcp (4)He 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 H(2) is insulating.

引用

页数：4

共 42 条

[1]

ANDREEV AF, 1969, SOV PHYS JETP-USSR, V29, P1107

[2]

Fate of vacancy-induced supersolidity in 4He [J].