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一个扫描共振器用于探测量子连贯设备.
Jared Gibson1, Zhanzhi Jiang2, Angela Kou1,2,3
1Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.
The Review of scientific instruments
|December 10, 2025
概括
我们开发了一个扫描共振器来探测量子设备,使调节合无需芯片制造. 这个敏感的工具以高分辨率测量量子位属性和物质损失.
科学领域:
- 量子计算和固态物理 量子计算和固态物理
- 超导量子电路中的超导量子电路
- 先进的材料的特征分析.
背景情况:
- 超导共振器是电路量子电动学 (电路QED) 中材料阻抗和量子比特演变的敏感探测器.
- 现有的方法通常需要为每个测试中的特定设备在芯片上制造共振器.
研究的目的:
- 实施一种新的扫描共振器系统,用于探测量子连贯设备.
- 为了使可调节的连接连接到量子系统,而无需芯片上的共振器制造.
- 用一种多功能,非侵入性的技术来描述超声量子比特和材料特性.
主要方法:
- 开发一种扫描共振器系统,能够进行可调的连贯合.
- 在单光子模式下测量共振器传感器的内部质量系数 (>10^4).
- 在毫克尔文温度下展示具有zeptoFarad灵敏度和微米空间分辨率的电容成像.
主要成果:
- 实现了响应器传感器的高内部质量系数,表明了出色的灵敏度.
- 成功完成了电容成像,证明了亚femtoFarad灵敏度和微米分辨率.
- 描述了没有集成读出电路的超声量子比特的能量频谱和连贯时间.
结论:
- 扫描共振器为量子设备的表征提供了一个新的,灵活的工具.
- 这种方法促进了使用电路QED原则研究现有和拟议的量子比特平台.
- 该系统为量子连贯设备和材料的非侵入性探测提供了一条途径.
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