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Updated: Jan 22, 2026

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Fabrication and Characterization of Superconducting Resonators
Published on: May 21, 2016
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超导量子位读出平衡交叉克尔合器
Alex A Chapple1, Othmane Benhayoune-Khadraoui1, Simon Richer1
1Université de Sherbrooke, Institut Quantique and Département de Physique, Sherbrooke, J1K 2R1 Quebec, Canada.
Physical review letters
|January 20, 2026
概括
我们介绍了连接读数,这是测量超导量子比特的新方法. 这种技术在速度和准确性方面超越了标准的分散式读数,为量子计算硬件提供了更好的性能.
科学领域:
- 量子计算是一种量子计算.
- 超导电路中的超导电路
- 量子测量是一种量子测量.
背景情况:
- 分散读数是超导量子比特测量的标准.
- 它受到多光子过程的限制,减少了速度和保真度.
- 这些局限性阻碍了量子门操作的进展.
研究的目的:
- 提出一种新的,高保真度的超导量子比特读取方法.
- 为了克服标准分散读数的局限性.
- 为了提高量子计算硬件的性能.
主要方法:
- 引入了使用约瑟夫森交叉合器的"交叉读取".
- 使用电容合来抑制Purcell衰变.
- 杆非扰动的克尔交叉相互作用用于测量.
主要成果:
- 交叉点读取显示了对多光子过程的稳定性.
- 在不到30 ns的时间内实现了超过99.99%的保真度.
- 与具有类似硬件开销的分散式读取相比,它展示了优越的性能.
结论:
- 交叉点读数为超导量子比特测量提供了一个有前途的替代方案.
- 能够实现更快,更准确的量子信息处理.
- 适合与当前量子计算硬件实现.
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