Variable-frequency-controlled coupling in charge qubit circuits: Effects of microwave field on qubit-state readout

被引：20

作者：

He, Xiao-Ling ^{[1
]}

Liu, Yu-xi

You, J. Q.

Nori, Franco

机构：

[1] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China

[2] Fudan Univ, Surface Phys Lab Natl Key Lab, Shanghai 200433, Peoples R China

[3] Inst Phys & Chem Res, Wako, Saitama 351, Japan

[4] Japan Sci & Technol Agcy JST, CREST, Kawaguchi, Saitama 3320012, Japan

[5] Univ Michigan, Ctr Theoret Phys, Dept Phys, Ctr Study Complex Syst, Ann Arbor, MI 48109 USA

来源：

PHYSICAL REVIEW A | 2007年 / 76卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.76.022317

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

To implement quantum-information processing, microwave fields are often used to manipulate superconducting qubits. We study how the coupling between superconducting charge qubits can be controlled by variable-frequency magnetic fields. We also study the effects of the microwave fields on the readout of the charge-qubit states. The measurement of the charge-qubit states can be used to demonstrate the statistical properties of photons.

引用

页数：6

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