共 61 条
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.
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页码:804 / 819
页数:16
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