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：
英国生物技术与生命科学研究理事会; 英国工程与自然科学研究理事会;
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.
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页数：7
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