物理
物理
물리
2013年
8期
558-566
,共9页
万歆%王正汉%杨昆
萬歆%王正漢%楊昆
만흠%왕정한%양곤
分数量子霍尔效应%非阿贝尔任意子%拓扑量子计算
分數量子霍爾效應%非阿貝爾任意子%拓撲量子計算
분수양자곽이효응%비아패이임의자%탁복양자계산
fractional quantum Hall effect%non-Abelian anyons%topological quantum com-putation
分数量子霍尔效应系统是奇异的量子液体,其中的准粒子激发可以带分数电荷,甚至具有非阿贝尔的统计性质。理论研究表明,这些准粒子可以用来实现在硬件上可容错的量子计算,即拓扑量子计算。文章在介绍分数量子霍尔效应及其在拓扑量子计算中的潜在应用基础上,重点回顾了近五年来对填充因子为5/2的分数量子霍尔态中非阿贝尔准粒子的实验探测和部分相关理论诠释。
分數量子霍爾效應繫統是奇異的量子液體,其中的準粒子激髮可以帶分數電荷,甚至具有非阿貝爾的統計性質。理論研究錶明,這些準粒子可以用來實現在硬件上可容錯的量子計算,即拓撲量子計算。文章在介紹分數量子霍爾效應及其在拓撲量子計算中的潛在應用基礎上,重點迴顧瞭近五年來對填充因子為5/2的分數量子霍爾態中非阿貝爾準粒子的實驗探測和部分相關理論詮釋。
분수양자곽이효응계통시기이적양자액체,기중적준입자격발가이대분수전하,심지구유비아패이적통계성질。이론연구표명,저사준입자가이용래실현재경건상가용착적양자계산,즉탁복양자계산。문장재개소분수양자곽이효응급기재탁복양자계산중적잠재응용기출상,중점회고료근오년래대전충인자위5/2적분수양자곽이태중비아패이준입자적실험탐측화부분상관이론전석。
Fractional quantum Hall systems are exotic quantum liquids which support quasi-particle excitations with fractional charge and even non-Abelian statistics. Theoretical investigations have found that these quasiparticles can be exploited to realize topological quantum computation that is fault-tolerant on the hardware level. In this article we describe the fractional quantum Hall effect with emphasis on its potential applications in topological quantum computation. We focus on the re-cent progress in the experimental detection of non-Abelian quasiparticles in the 5/2-filling quantum Hall system, as well as on some relevant theoretical interpretations.