Swap operation in the presence of Zeeman inhomogeneity in coupled quantum dots

被引：3
|
作者：
Zhou, Yue [1 ]
Zhang, Guo-Feng [2 ,3 ]
机构：
[1] Beijing Forestry Univ, Sch Sci, Dept Phys & Elect, Beijing 100083, Peoples R China
[2] Beihang Univ, Sch Phys & Nucl Energy Engn, Dept Phys, Being 100191, Peoples R China
[3] Beihang Univ, Minist Educ, Key Lab Micronano Measurement Manipulat & Phys, Beijing 100191, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2014年 / 178卷
基金：
中国国家自然科学基金;
关键词：
Quantum dot; Swap operation; Fidelity; COHERENT MANIPULATION; ERROR-CORRECTION; FIDELITY; SPINS;
D O I：
10.1016/j.ssc.2013.10.024
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In this paper, we study the effects of inhomogeneous magnetic field on the swap operation, which is a fundamental component to construct universal quantum circuits. The lower bound of the operation fidelity is given. The scheme to perform the ideal swap operation and its square root is investigated. It is shown that the strength of the exchange coupling should satisfy some discrete values. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：28 / 32
页数：5
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