Spectroscopy and coherent manipulation of single and coupled flux qubits

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	Spectroscopy and coherent manipulation of single and coupled flux qubits
	Wu, YL ; Deng, H ; Huang, KQ ; Tian, Y ; Yu, HF ; Xue, GM ; Jin, YR ; Li, J ; Zhao, SP ; Zheng, DN
刊名	CHINESE PHYSICS B
	2013
卷号	22 期号:9
关键词	quantum computing flux qubit Rabi oscillation dc-SQUID
ISSN号	1674-1056
通讯作者	Zheng, DN (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	Measurements of three-junction flux qubits, both single flux qubits and coupled flux qubits, using a coupled direct current superconducting quantum interference device (dc-SQUID) for readout are reported. The measurement procedure is described in detail. We performed spectroscopy measurements and coherent manipulations of the qubit states on a single flux qubit, demonstrating quantum energy levels and Rabi oscillations, with Rabi oscillation decay time T-Rabi = 78 ns and energy relaxation time T-1 = 315 ns. We found that the value of TRabi depends strongly on the mutual inductance between the qubit and the magnetic coil. We also performed spectroscopy measurements on inductively coupled flux qubits.
资助信息	National Basic Research Program of China [2011CBA00106, 2009CB929102]; National Natural Science Foundation of China [11104333, 10974243, 11104340, 11161130519]; Chinese Academy of Sciences
语种	英语
公开日期	2014-01-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57455]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Wu, YL,Deng, H,Huang, KQ,et al. Spectroscopy and coherent manipulation of single and coupled flux qubits[J]. CHINESE PHYSICS B,2013,22(9).
APA	Wu, YL.,Deng, H.,Huang, KQ.,Tian, Y.,Yu, HF.,...&Zheng, DN.(2013).Spectroscopy and coherent manipulation of single and coupled flux qubits.CHINESE PHYSICS B,22(9).
MLA	Wu, YL,et al."Spectroscopy and coherent manipulation of single and coupled flux qubits".CHINESE PHYSICS B 22.9(2013).