南方科技大学知识苑(SUSTech KC): Universal quantum control based on parametric modulation in superconducting circuits

题名	Universal quantum control based on parametric modulation in superconducting circuits
作者	Li，Dan Yu 1; Chu，Ji 2; Zheng，Wen 1; Lan，Dong 1; Zhao，Jie 1; Li，Shao Xiong 1; Tan，Xin Sheng 1; Yu，Yang 1
发表日期	2021-07-01
DOI	10.1088/1674-1056/ac01c3
发表期刊	Chinese Physics B 影响因子和分区
ISSN	1674-1056
EISSN	2058-3834
卷号	30 期号:7
摘要	As superconducting quantum circuits are scaling up rapidly towards the noisy intermediate-scale quantum (NISQ) era, the demand for electronic control equipment has increased significantly. To fully control a quantum chip of N qubits, the common method based on up-conversion technology costs at least 2 × N digital-to-analog converters (DACs) and N IQ mixers. The expenses and complicate mixer calibration have become a hinderance for intermediate-scale quantum control. Here we propose a universal control scheme for superconducting circuits, fully based on parametric modulation. To control N qubits on a chip, our scheme only requires N DACs and no IQ mixer, which significantly reduces the expenses. One key idea in the control scheme is to introduce a global pump signal for single-qubit gates. We theoretically explain how the universal gates are constructed using parametric modulation. The fidelity analysis shows that parametric single-qubit (two-qubit) gates in the proposed scheme can achieve low error rates of 10-4, with a gate time of about 60 ns (100 ns).
关键词	iSWAP gate parametric modulation single-qubit gate superconducting qubits
相关链接	[Scopus记录]
收录类别	SCI ; EI
语种	英语
学校署名	其他
WOS记录号	WOS:000673141200001
EI入藏号	20213010677074
EI主题词	Control equipment ; Control theory ; Mixers (machinery) ; Modulation ; Quantum theory ; Qubits ; Timing circuits
EI分类号	Pulse Circuits:713.4 ; Data Processing and Image Processing:723.2 ; Control Systems:731.1 ; Control Equipment:732.1 ; Quantum Theory; Quantum Mechanics:931.4
Scopus记录号	2-s2.0-85110948251
来源库	Scopus
引用统计	被引频次[WOS]：1
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/242102
专题	量子科学与工程研究院理学院_物理系
作者单位	1.National Laboratory of Solid State Microstructures,School of Physics,Nanjing University,Nanjing,210093,China 2.Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
推荐引用方式 GB/T 7714	Li，Dan Yu,Chu，Ji,Zheng，Wen,et al. Universal quantum control based on parametric modulation in superconducting circuits[J]. Chinese Physics B,2021,30(7).
APA	Li，Dan Yu.,Chu，Ji.,Zheng，Wen.,Lan，Dong.,Zhao，Jie.,...&Yu，Yang.(2021).Universal quantum control based on parametric modulation in superconducting circuits.Chinese Physics B,30(7).
MLA	Li，Dan Yu,et al."Universal quantum control based on parametric modulation in superconducting circuits".Chinese Physics B 30.7(2021).