Parametric coupling for superconducting qubits

被引：98

作者：

Bertet, P ^{[1
]}

Harmans, CJPM ^{[1
]}

Mooij, JE ^{[1
]}

机构：

[1] Delft Univ Technol, Kavli Inst Nanosci, Quantum Transport Grp, NL-2826 CJ Delft, Netherlands

来源：

PHYSICAL REVIEW B | 2006年 / 73卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.73.064512

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We propose a scheme to couple two superconducting charge or flux qubits biased at their symmetry points with unequal energy splittings. Modulating the coupling constant between two qubits at the sum or difference of their two frequencies allows to bring them into resonance in the rotating frame. Switching on and off the modulation amounts to switching on and off the coupling which can be realized at a nanosecond speed. We discuss various physical implementations of this idea, and find that our scheme can lead to rapid operation of a two-qubit gate.

引用

页数：6

共 27 条

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