Fault-tolerant quantum computation versus Gaussian noise

被引：48
|
作者：
Ng, Hui Khoon [1 ]
Preskill, John [1 ]
机构：
[1] CALTECH, Inst Quantum Informat, Pasadena, CA 91125 USA
来源：
PHYSICAL REVIEW A | 2009年 / 79卷 / 03期
基金：
美国国家科学基金会;
关键词：
fault tolerant computing; Gaussian noise; Markov processes; quantum computing; quantum noise; ACCURACY THRESHOLD;
D O I：
10.1103/PhysRevA.79.032318
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study the robustness of a fault-tolerant quantum computer subject to Gaussian non-Markovian quantum noise, and we show that scalable quantum computation is possible if the noise power spectrum satisfies an appropriate "threshold condition." Our condition is less sensitive to very-high-frequency noise than previously derived threshold conditions for non-Markovian noise.
引用
收藏
页数：20
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