Floquet Chiral Magnetic Effect

被引：39

作者：

Higashikawa, Sho ^{[1
]}

Nakagawa, Masaya ^{[1
]}

Ueda, Masahito ^{[1
,2
]}

机构：

[1] Univ Tokyo, Dept Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan

[2] RIKEN Ctr Emergent Matter Sci CEMS, Wako, Saitama 3510198, Japan

来源：

PHYSICAL REVIEW LETTERS | 2019年 / 123卷 / 06期

基金：

日本学术振兴会;

关键词：

EDGE STATES; NEUTRINOS; SEMIMETAL; FERMIONS; ABSENCE; LATTICE;

D O I：

10.1103/PhysRevLett.123.066403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A single Weyl fermion, which is prohibited in static lattice systems by the Nielsen-Ninomiya theorem, is shown to be realized in a periodically driven three-dimensional lattice system with a topologically nontrivial Floquet unitary operator, manifesting the chiral magnetic effect. We give a topological classification of Floquet unitary operators in the Altland-Zirnbauer symmetry classes for all dimensions, and use it to predict that all gapless surface states of topological insulators and superconductors can emerge in bulk quasienergy spectra of Floquet systems.

引用

页数：6

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