Tunable coupling of transmission-line microwave resonators mediated by an rf SQUID

被引：49

作者：

Wulschner, Friedrich ^{[1
,2
]}

Goetz, Jan ^{[1
,2
]}

Koessel, Fabian R. ^{[1
,2
]}

Hoffmann, Elisabeth ^{[1
,2
]}

Baust, Alexander ^{[1
,2
,3
]}

Eder, Peter ^{[1
,2
,3
]}

Fischer, Michael ^{[1
,2
,3
]}

Haeberlein, Max ^{[1
,2
]}

Schwarz, Manuel J. ^{[1
,2
,3
]}

Pernpeintner, Matthias ^{[1
,2
,3
]}

Xie, Edwar ^{[1
,2
,3
]}

Zhong, Ling ^{[1
,2
,3
]}

Zollitsch, Christoph W. ^{[1
,2
]}

Peropadre, Borja ^{[4
]}

Garcia Ripoll, Juan-Jose ^{[5
]}

Solano, Enrique ^{[2
,6
,7
]}

Fedorov, Kirill G. ^{[1
,2
]}

Menzel, Edwin P. ^{[1
,2
]}

Deppe, Frank ^{[1
,2
,3
]}

Marx, Achim ^{[1
]}

Gross, Rudolf ^{[1
,2
,3
]}

机构：

[1] Bayer Akad Wissensch, Walther Meissner Inst, D-85748 Garching, Germany

[2] Tech Univ Munich, Phys Dept, D-85748 Garching, Germany

[3] NIM, Schellingstr 4, D-80799 Munich, Germany

[4] Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA

[5] CSIC, IFF, Calle Serrano 113b, Madrid 28006, Spain

[6] Univ Basque Country, UPV EHU, Dept Phys Chem, Apartado 644, Bilbao 48080, Spain

[7] Basque Fdn Sci, Ikerbasque, Maria Diaz de Haro 3, Bilbao 48013, Spain

来源：

EPJ QUANTUM TECHNOLOGY | 2016年 / 3卷

关键词：

QUANTUM LIMIT; QUBITS;

D O I：

10.1140/epjqt/s40507-016-0048-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We realize tunable coupling between two superconducting transmission line resonators. The coupling is mediated by a non-hysteretic rf SQUID acting as a flux-tunable mutual inductance between the resonators. We present a spectroscopic characterization of the device. In particular, we observe couplings g/2 pi ranging between -320 MHz and 37 MHz. In the case of g similar or equal to 0, the microwave power cross transmission between the two resonators is reduced by almost four orders of magnitude as compared to the case where the coupling is switched on.

引用

页数：10

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