REAL-SPACE RENORMALIZATION STUDY OF DISORDERED INTERACTING BOSONS

被引：101

作者：

SINGH, KG

ROKHSAR, DS

机构：

[1] Department of Physics, University of California, Berkeley

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.46.3002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study a real-space renormalization group for disordered, interacting bosons at zero temperature in one and two dimensions. In the absence of disorder at commensurate density we find a superfluid-Mott-insulator transition that is unaffected by the addition of weak disorder, i.e., disorder is weakly irrelevant at the Mott-superfluid transition. Above a threshold disorder a gapless insulating phase-the "Bose glass"-intervenes.

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页码：3002 / 3008

页数：7

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