Controllable coupling of superconducting transmission-line resonators

被引：30

作者：

Hu, Yong ^{[1
]}

Xiao, Yun-Feng ^{[1
]}

Zhou, Zheng-Wei ^{[1
]}

Guo, Guang-Can ^{[1
]}

机构：

[1] Univ Sci & Technol China, Chinese Acad Sci, Key Lab Quantum Informat, Hefei 230026, Anhui, Peoples R China

来源：

PHYSICAL REVIEW A | 2007年 / 75卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.75.012314

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Realization of controllable interaction between subsystems is one of the major problems in solid-state quantum computing. We study a current-biased Josephson junction (CBJJ) as a tunable coupler for superconducting transmission-line resonators (TLR). By modulating the bias current, the junction can be tuned in and out of resonance with the TLRs connected to it. Various inter-TLR quantum operations can be reliably implemented by controlling the mediating CBJJ. The main decoherence sources are analyzed in detail. This work may offer improvement to scalable quantum computing in coupled TLR-cavity array system.

引用

页数：5

共 31 条

[1] Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computation [J].