对于超导量子电路的快速流动激活的泄漏减少
Nathan Lacroix1,2, Luca Hofele1,2, Ants Remm1
1ETH Zurich, Department of Physics, CH-8093 Zurich, Switzerland.
Physical review letters
|April 11, 2025
概括
本研究介绍了一种资源高效的单元,以减少量子计算机中的量子位泄漏错误. 这一突破对于推进量子错误校正和实现容错量子计算至关重要.
科学领域:
- 量子计算是一种量子计算.
- 量子错误纠正方法 量子错误纠正方法
背景情况:
- 量子计算机需要量子错误校正来实现低误差率.
- 量子漏洞是量子错误纠正代码中的一个主要错误来源.
- 超导量子比特是量子计算的领先平台.
研究的目的:
- 为超导量子比特提供一种资源高效的通用泄漏减少装置.
- 为了减轻漏出计算子空间所造成的错误.
主要方法:
- 使用参数流量调制来减少泄漏.
- 实施了一种通用减少泄漏的单元.
- 在重量二稳定器重复测量时应用该单位.
主要成果:
- 在~50 ns. 中实现了降低泄漏率至7x10^-4的降低.
- 已证明的低计算子空间误差为2.5(1) x10^-3.
- 在稳定器测量中减少了可扩展的总检测错误.
结论:
- 开发的减少泄漏的单元是高效的,可与单量子比特门相比较.
- 该方法适用于没有额外硬件的辅助和数据量子位.
- 这种方法对于大规模的量子错误校正和容错量子计算具有吸引力.
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