Spectroscopy on two coupled superconducting flux qubits

被引：217

作者：

Majer, JB ^{[1
]}

Paauw, FG ^{[1
]}

ter Haar, ACJ ^{[1
]}

Harmans, CJPM ^{[1
]}

Mooij, JE ^{[1
]}

机构：

[1] Delft Univ Technol, Kavli Inst nanosci, NL-2628 CJ Delft, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.94.090501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have performed spectroscopy measurements on two coupled flux qubits. The qubits are coupled inductively, which results in a sigma(1)(z)sigma(2)(z) interaction. By applying microwave radiation, we observe resonances due to transitions from the ground state to the first two excited states. From the position of these resonances as a function of the applied magnetic field, we observe the coupling of the qubits. The coupling strength agrees with calculations of the mutual inductance.

引用

页数：4

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