Tunable interaction of superconducting flux qubits in circuit QED

被引：5

作者：

Xue, Zheng-Yuan ^{[1
,2
]}

Li, Ya-Fei ^{[1
,2
]}

Zhou, Jian ^{[1
,2
,3
,4
]}

Gao, Yu-Mei ^{[5
]}

Zhang, Gang ^{[6
]}

机构：

[1] S China Normal Univ, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Guangdong, Peoples R China

[2] S China Normal Univ, Sch Phys & Telecommun Engn, Guangzhou 510006, Guangdong, Peoples R China

[3] Anhui Xinhua Univ, Hefei 230088, Peoples R China

[4] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

[5] Univ Elect Sci & Technol China, Zhongshan Coll, Zhongshan 528402, Peoples R China

[6] West Anhui Univ, Sch Mech & Elect Engn, Luan 237012, Peoples R China

来源：

QUANTUM INFORMATION PROCESSING | 2016年 / 15卷 / 02期

关键词：

Circuit QED; Tunable interaction; Superconducting flux qubit; QUANTUM INFORMATION; CAVITY; ENTANGLEMENT; DEVICES; PHOTON;

D O I：

10.1007/s11128-015-1185-8

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose to implement tunable interaction of superconducting flux qubits with cavity-assisted interaction and strong driving. The qubits have a three-level Lambda configuration, and the decay of the excited state will be greatly suppressed due to the effective large detuning. The implemented interaction is insensitive to the cavity field state and can be controlled by modulating the phase difference of the driving fields of the qubits. In particular, our scheme is based on the typical circuit QED setup and thus will provide a simple method towards the tunable interaction of superconducting qubits. Finally, we consider the generation of two and four qubits entangled states with the constructed interaction under the influence of typical decoherence effects.

引用

页码：721 / 729

页数：9

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