Design and Implementation of RSFQ Microwave Choppers for the Superconducting Quantum-Computing System

被引：0
|
作者：
Takeuchi, Naoki [1 ]
Yamanashi, Yuki [1 ]
Yoshikawa, Nobuyuki [1 ]
机构：
[1] Yokohama Natl Univ, Dept Elect & Comp Engn, Yokohama, Kanagawa 2408501, Japan
来源：
IEICE TRANSACTIONS ON ELECTRONICS | 2010年 / E93C卷 / 04期
关键词：
SFQ; quantum bit; microwave chopper; superconducting circuits; BITS;
D O I：
10.1587/transele.E93.C.458
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We have been studying a superconducting quantum-computing system where superconducting qubits are controlled and read out by rapid single-flux- quantum (RSFQ) circuits In this study, we designed and fabricated an RSFQ microwave chopper. which turns on and oil an externally applied microwave to control qubit states with the time resolution of sub-nanosecond The chopper is implemented in a microwave module and mounted in a dilution refrigerator We tested the microwave chopper at 4 2 K The amplitude of the output microwave was approximately 100 mu V which is much larger than that of previously designed chopper We also confirmed that the irradiation time can be controlled by RSFQ control circuits
引用
收藏
页码：458 / 462
页数：5
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