Improving the purity of one- and two-qubit gates

被引：7

作者：

Kohler, Sigmund ^{[1
]}

Haenggi, Peter ^{[1
]}

机构：

[1] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany

来源：

FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS | 2006年 / 54卷 / 8-10期

关键词：

quantum computation; decoherence; driven systems;

D O I：

10.1002/prop.200610314

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the influence of AC driving fields on the coherence properties of one- and two-qubit gate operations. In both cases, we find that for suitable driving parameters, the gate purity improves significantly. A mapping of the time-dependent system-bath model to an effective static model provides analytical results. The resulting purity loss compares favorably with numerical results.

引用

页码：804 / 819

页数：16

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