格子手术实现在两个距离三重复代码与超导量子比特的超导量子比特上
Ilya Besedin1,2,3, Michael Kerschbaum1,2,3, Jonathan Knoll1
1Department of Physics, ETH Zurich, Zurich, Switzerland.
Nature physics
|February 16, 2026
概括
量子错误校正使得容错量子计算成为可能. 研究人员在编码量子比特上演示了晶格手术,改善了可扩展量子计算的逻辑可观测性能.
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:
- 量子计算机需要对复杂的算法进行强大的量子错误校正.
- 目前的研究重点是单个逻辑量子比特的低误差率.
- 纠逻辑量子位和执行门操作是关键的下一步.
研究的目的:
- 为了展示两个距离三重复代码量子比特之间的格子手术.
- 在编码的量子比特上实现容错的网关操作.
- 为了显示更远距离代码的功能构建块.
主要方法:
- 通过分割一个距离为3的表面代码量子位来演示格子手术.
- 采用了一种对比特翻转错误的量子电路容错.
- 在两个距离三重复代码量子比特上执行操作.
主要成果:
- 在编码量子比特之间实现了网格手术.
- 与非编码电路相比,显示了改进的解码Z逻辑双量子位可观测.
- 验证了超导电路的技术.
结论:
- 格子手术是一种可行的技术,用于纠和操作编码的量子比特.
- 这项工作为可扩展的量子计算提供了必不可少的基石.
- 通过使用超导电路向故障耐受量子计算的进展.
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