Optimal multiqubit operations for Josephson charge qubits

被引：42
|
作者：
Niskanen, AO [1 ]
Vartiainen, JJ [1 ]
Salomaa, MM [1 ]
机构：
[1] Helsinki Univ Technol, Phys Mat Lab, FIN-02015 Espoo, Finland
来源：
PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 19期
关键词：
D O I：
10.1103/PhysRevLett.90.197901
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We introduce a method for finding the required control parameters for a quantum computer that yields the desired quantum algorithm without invoking elementary gates. We concentrate on the Josephson charge-qubit model, but the scenario is readily extended to other physical realizations. Our strategy is to numerically find any desired double- or triple-qubit gate. The motivation is the need to significantly accelerate quantum algorithms in order to fight decoherence.
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页数：4
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