Braid operation of exceptional points

被引：8
|
作者：
Kim, Sang Wook [1 ]
机构：
[1] Pusan Natl Univ, Dept Phys Educ, Pusan 609735, South Korea
来源：
FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS | 2013年 / 61卷 / 2-3期
关键词：
Non-Hermitian operators; exceptional points; topological quantum computation; SPONTANEOUS EMISSION; QUANTUM COMPUTATION; SYSTEMS; ANYONS;
D O I：
10.1002/prop.201200073
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We review the characteristics of exceptional points (EPs) focusing on their braid operation. First we explain how the braid operation occurs in EPs using 2 x 2 non-Hermitian matrix, and discuss the physical meaning of the coalescence of eigenvetors at the EP. We also show the relation between EPs and the so-called exotic holonomy. Finally, we demonstrate a preliminary result on how to exploit the braid operation of EPs for topological quantum computation. (C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：155 / 161
页数：7
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