Swap action in a solid-state controllable anisotropic Heisenberg model

被引：5

作者：

Hao, Xiang ^{[1
]}

Zhu, Shiqun ^{[1
]}

机构：

[1] Suzhou Univ, Sch Phys Sci & Technol, Suzhou 215006, Jiangsu, Peoples R China

来源：

PHYSICS LETTERS A | 2008年 / 372卷 / 07期

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

D O I：

10.1016/j.physleta.2007.09.004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Correct swap action can be realized via the control of the anisotropic Heisenberg interaction in solid-state quantum systems. The conditions of performing a swap are derived by the dynamics of arbitrary bipartite pure state. It is found that swap errors can be eliminated in the presence of symmetric anisotropy. In realistic quantum computers with unavoidable fluctuations, the gate fidelity of swap action is estimated. The scheme of quantum computation via the anisotropic Heisenberg interaction is implemented in a one-dimensional quantum dots. The slanting and static magnetic field can be used to adjust the anisotropy. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1119 / 1122

页数：4

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