Preparing pseudopure states with controlled-transfer gates

被引：10

作者：

Kawamura, Minaru ^{[1
]}

Rowland, Benjamin ^{[2
]}

Jones, Jonathan A. ^{[2
,3
]}

机构：

[1] Okayama Univ Sci, Okayama 7000005, Japan

[2] Univ Oxford, Clarendon Lab, Ctr Quantum Computat, Oxford OX1 3PU, England

[3] Univ Oxford, Ctr Adv ESR, Oxford OX1 3QR, England

来源：

PHYSICAL REVIEW A | 2010年 / 82卷 / 03期

基金：

英国工程与自然科学研究理事会; 英国生物技术与生命科学研究理事会;

关键词：

NUCLEAR-MAGNETIC-RESONANCE; EFFECTIVE PURE STATES; QUANTUM; SPIN; DYNAMICS;

D O I：

10.1103/PhysRevA.82.032315

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The preparation of pseudopure states plays a central role in the implementation of quantum information processing in high-temperature ensemble systems, such as nuclear magnetic resonance. Here we describe a simple approach based on controlled-transfer gates which permits pseudopure states to be prepared efficiently using spatial averaging techniques.

引用

页数：7

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