Planar Dirac fermions in long-range-correlated random vector potential

被引：7

作者：

Khveshchenko, DV ^{[1
]}

Yashenkin, AG

机构：

[1] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA

[2] Petersburg Nucl Phys Inst, St Petersburg 188300, Russia

来源：

PHYSICS LETTERS A | 2003年 / 309卷 / 5-6期

基金：

美国国家科学基金会;

关键词：

Dirac fermions; random magnetic field; vortex line liquid; Bohm-Aharonov phase;

D O I：

10.1016/S0375-9601(03)00212-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the behavior of two-dimensional Dirac fermions in the presence of a static long-range-correlated random vector potential. By applying an exact path integral representation for the propagator of a spinor particle we obtain asymptotics of the gauge invariant spectral function and the correlation function of the local density of states, both in the ballistic regime of sufficiently high energies. We also discuss localization properties of the random Dirac wave functions in the complementary zero energy limit and the putative localization scenario. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：363 / 370

页数：8

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