文献类型：期刊文献

中文题名：拓扑超导Majorana束缚态的探索

英文题名：Exploration of Majorana bound states in topological superconductors

作者：梁奇锋[1,5];王志[2,5];川上拓人[3];胡晓[4]

机构：[1]绍兴文理学院物理系,绍兴312000;[2]中山大学物理系,广州510275;[3]日本大阪大学大学院理学研究科物理学专攻,大阪565-0871,日本;[4]日本国立物质材料研究机构,国际物质纳米结构学研究中心,筑波305-0044,日本;[5]中国科学院大学,卡弗里理论物理研究所,北京100190

年份：2020

卷号：69

期号：11

起止页码：226

中文期刊名：物理学报

外文期刊名：Acta Physica Sinica

收录：SCI-EXPANDED(收录号：WOS:000560740100022)、CSTPCD、、EI(收录号：20203108996290)、北大核心2017、Scopus、CSCD2019_2020、WOS、北大核心、CSCD

语种：中文

中文关键词：Majorana束缚态;拓扑超导;非阿贝尔统计;量子计算

外文关键词：Majorana bound state;topological superconductivity;non-Abelian statitistics;quantum computation

中文摘要：Majorana束缚态具有非阿贝尔量子统计特性,是极具潜力的拓扑量子计算方案的核心.近期有多项实验研究提供了Majorana束缚态在某些超导体系中的存在证据,使其成为近期凝聚态物理以及量子计算领域的前沿焦点之一.本文介绍拓扑超导的机理、Majorana束缚态的新奇物理特性、实验观测和操作的方法以及相关量子器件的设计,最后展望该研究方向的发展前景.

外文摘要：Majorana bound states are considered useful for realizing topological quantum computation since they obey the non-Abelian quantum statistics.Recent experiments have provided evidences for their existence in some superconducting systems,triggering significant interests from scientists in the field of condensed matter physics and related materials science.In this article,we briefly review the basic concepts and recent developments in the study of Majorana bound states.We first discuss about the origin of the nontrivial topology in superconducting systems within the Bogoliubov-de Gennes mean-field scheme.Then we show the construction of Majorana quasiparticle excitations from an electronic state,and the realization of non-Abelian statistics based on position exchanges of the Majorana bound states hosted in superconductivity vortices.Afterwards we talk about specific one-dimensional and two-dimensional topological superconductors,and propose possible experimental methods for detecting Majorana bound states and operating the Majorana qubits.In particular,a quantum device for Majorana braiding without moving vortices is introduced.Finally,perspectives of the study on Majorana bound states are provided.