Superglass phase of 4He

被引：169

作者：

Boninsegni, M ^{[1
]}

Prokof'ev, N

Svistunov, B

机构：

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

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

[3] IV Kurchatov Atom Energy Inst, Russian Res Ctr, Moscow 123182, Russia

[4] Cornell Univ, Dept Phys, Ithaca, NY 14850 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 10期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.96.105301

中图分类号：

O4 [物理学];

学科分类号：

0702 [物理学];

摘要：

We study different solid phases of He-4, by means of path integral Monte Carlo simulations based on a recently developed worm algorithm. Our study includes simulations that start off from a high-T gas phase, which is then "quenched" down to T=0.2 K. The low-T properties of the system crucially depend on the initial state. While an ideal hcp crystal is a clear-cut insulator, the disordered system freezes into a superglass, i.e., a metastable amorphous solid featuring off-diagonal long-range order and superfluidity.

引用

页码：1 / 4

页数：4

共 18 条

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