Unconventional scaling theory in disorder-driven quantum phase transition

被引：8

作者：

Luo, Xunlong ^{[1
,2
]}

Ohtsuki, Tomi ^{[3
]}

Shindou, Ryuichi ^{[1
,2
]}

机构：

[1] Peking Univ, Int Ctr Quantum Mat, Beijing 100871, Peoples R China

[2] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China

[3] Sophia Univ, Dept Phys, Chiyoda Ku, Tokyo 1028554, Japan

来源：

PHYSICAL REVIEW B | 2018年 / 98卷 / 02期

关键词：

ANDERSON TRANSITION; MOBILITY EDGE; LOCALIZATION; SYSTEMS; UNIVERSALITY; CONDUCTANCE; SYMMETRY; DIFFUSION; ABSENCE;

D O I：

10.1103/PhysRevB.98.020201

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We clarify unconventional forms of the scaling functions of conductance, critical conductance distribution, and localization length in a disorder-driven quantum phase transition between band insulator and Weyl semimetal phases. Quantum criticality of the phase transition is controlled by a clean-limit fixed point with spatially anisotropic scale invariance. We argue that the anisotropic scale invariance is reflected on the scaling function forms in the quantum phase transition. We verify the proposed scaling function forms in terms of transfer-matrix calculations of conductance and localization length in a tight-binding model.

引用

页数：5

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