Phase transition in a system of one-dimensional bosons with strong disorder

被引：88

作者：

Altman, E ^{[1
]}

Kafri, Y

Polkovnikov, A

Refael, G

机构：

[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[2] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 15期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.93.150402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study one-dimensional disordered bosons at large commensurate filling. Using a real space renormalization group approach, we find a new random fixed point which controls a phase transition from a superfluid to an incompressible Mott glass. The transition can be tuned by changing the disorder distribution even with vanishing interactions. We derive the properties of the transition, which suggest that it is in the Kosterlitz-Thouless universality class.

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页码：150402 / 1

页数：4

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