Interplay between Zeeman coupling and swap action in spin-based quantum computer models: Error correction in inhomogeneous magnetic fields

被引：71

作者：

Hu, XD ^{[1
]}

de Sousa, R ^{[1
]}

Das Sarma, S ^{[1
]}

机构：

[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.86.918

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider theoretically the interplay between Zeeman coupling and exchange-induced swap action in spin-based quantum dot quantum computer models in the presence of inhomogeneous magnetic fields, which are invariably present in real systems. We estimate quantitatively swap errors caused by the inhomogeneous held, establishing that error correction would, in principle, be possible in the presence of nonuniform magnetic fields in realistic structures.

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页码：918 / 921

页数：4

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