量子位元
量子计算机
互连
接口
实现(概率)
光电子学
量子
中间层
计算机科学
量子点
硅
倒装芯片
电子线路
物理
纳米技术
材料科学
量子力学
电信
计算机硬件
胶粘剂
图层(电子)
统计
蚀刻(微加工)
数学
作者
Tokio Futaya,Raisei Mizokuchi,Misato Taguchi,Takuji Miki,Makoto Nagata,Jun Yoneda,Tetsuo Kodera
标识
DOI:10.35848/1347-4065/ad27bd
摘要
Abstract Interfacing qubits with peripheral control circuitry poses one of the major common challenges toward realization of large-scale quantum computation. Spin qubits in silicon quantum dots (QDs)are particularly promising for scaling up, owing to the potential benefits from the know-how of the semiconductor industry. In this paper, we focus on the interposer technique as one of the potential solutions for the quantum–classical interface problem and report DC and RF characterization of a silicon QD device mounted on an interposer. We demonstrate flip-chip interconnection with the qubit device down to 4.2 K by observing Coulomb diamonds. We furthermore propose and demonstrate a laser-cut technique to disconnect peripheral circuits no longer in need. These results may pave the way toward system-on-a-chip quantum–classical integration for future quantum processors.
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