使用势垒门脉冲的量子点量子比特的单次锁存读出

IF 8.3 1区 物理与天体物理 Q1 PHYSICS, APPLIED
Sanghyeok Park, Jared Benson, J. Corrigan, J. P. Dodson, S. N. Coppersmith, Mark Friesen, M. A. Eriksson
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引用次数: 0

摘要

量子位锁存技术需要精确调整多个隧道速率,当一个量子位与单个储层耦合时,这可能是一个挑战。在这里,我们提出了这样一种单次测量的方法,其中势垒门被脉冲来动态控制量子比特到储层的隧道速率。在测量Si/SiGe量子点混合量子比特的相干Larmor振荡时,我们使用它来减少量子比特复位时间。该方法也很容易适用于其他类型的基于自旋的量子位。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Single shot latched readout of a quantum dot qubit using barrier gate pulsing

Single shot latched readout of a quantum dot qubit using barrier gate pulsing

Qubit latching techniques require precise tuning of multiple tunnel rates, which can be challenging when a qubit is coupled to a single reservoir. Here, we present such a method for single-shot measurement, in which the barrier gate is pulsed to dynamically control qubit-to-reservoir tunnel rates. We use it to reduce the qubit reset time in measurements of coherent Larmor oscillations of a Si/SiGe quantum dot hybrid qubit. The method is also readily applicable to other types of spin-based qubits.

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来源期刊
npj Quantum Information
npj Quantum Information Computer Science-Computer Science (miscellaneous)
CiteScore
13.70
自引率
3.90%
发文量
130
审稿时长
29 weeks
期刊介绍: The scope of npj Quantum Information spans across all relevant disciplines, fields, approaches and levels and so considers outstanding work ranging from fundamental research to applications and technologies.
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