Breakdown of an electric-field driven system: A mapping to a quantum walk

被引：85

作者：

Oka, T ^{[1
]}

Konno, N

Arita, R

Aoki, H

机构：

[1] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[2] Yokohama Natl Univ, Fac Engn, Dept Appl Math, Yokohama, Kanagawa 2408501, Japan

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.94.100602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quantum transport properties of electron systems driven by strong electric fields are studied by mapping the Landau-Zener transition dynamics to a quantum walk on a semi-infinite one-dimensional lattice with a reflecting boundary, where the sites correspond to energy levels and the boundary the ground state. Quantum interference induces a distribution localized around the ground state, and a delocalization transition occurs when the electric field is increased, which describes the dielectric breakdown in the original electron system.

引用

页数：4

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