Detection of a persistent-current qubit by resonant activation

被引：17

作者：

Bertet, P

Chiorescu, I

Semba, K

Harmans, CJPM

Mooij, JE

机构：

[1] Delft Univ Technol, Kavli INst Nanosci, Quantum Transport Grp, NL-2628 CJ Delft, Netherlands

[2] NTT Corp, NTT Basic Res Labs, Atsugi, Kanagawa 2430198, Japan

来源：

PHYSICAL REVIEW B | 2004年 / 70卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.70.100501

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present the implementation of a scheme to detect the quantum state of a persistent-current qubit. It relies on the dependency of the measuring superconducting quantum interference device plasma frequency on the qubit state, which we detect by resonant activation. With a measurement pulse of only 5 ns, we observed Rabi oscillations with high visibility (65%).

引用

收藏

页码：100501 / 1

页数：4

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