Vacuum Rabi splitting due to strong coupling of a flux qubit and a coplanar-waveguide resonator

被引：118

作者：

Abdumalikov, Abdufarrukh A., Jr. ^{[1
]}

Astafiev, Oleg ^{[1
,2
]}

Nakamura, Yasunobu ^{[1
,2
,3
]}

Pashkin, Yuri A. ^{[1
,2
]}

Tsai, JawShen ^{[1
,2
,3
]}

机构：

[1] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

[2] NEC Nano Elect Res Labs, Tsukuba, Ibaraki 3058501, Japan

[3] JST, CREST, Kawaguchi, Saitama 3320012, Japan

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.78.180502

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have experimentally studied a superconducting flux qubit strongly coupled to a single mode of a high-quality transmission-type coplanar-waveguide resonator. The qubit-resonator coupling is revealed in the resonator transmission spectrum as a vacuum Rabi splitting. In the dispersive regime the qubit energy levels are spectroscopically probed. We observe a shift in the qubit transition frequency that linearly depends on the number of photons in the resonator, which is attributed to the ac-Zeeman shift. The observations are in agreement with the theoretical predictions.

引用

页数：4

共 24 条

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