对等性依赖的状态转移用于直接纠生成.
F A Roy1,2, J H Romeiro3,4, L Koch5,6
1Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, Garching, Germany. federico.roy@wmi.badw.de.
Nature communications
|March 19, 2025
概括
完美状态传输允许快速,远程量子比特通信,只使用本地连接. 这种方法还可以实现高效的多量子比特纠生成,这对于量子计算的进步至关重要.
科学领域:
- 量子信息科学 量子信息科学
- 超导量子计算 超导量子计算
- 量子纠是一种量子纠.
背景情况:
- 扩展量子计算机需要改进量子比特连接性和高效的纠生成.
- 现有的方法在实现远程量子位相互作用和高保真度纠方面面临局限性.
- 完美状态转移 (PST) 提供了一个潜在的解决方案,用于使用最接近邻居合的时间最佳状态转移.
研究的目的:
- 在超导量子处理器上实验证明完美状态转移.
- 探索PST用于生成多量子比特纠的应用.
- 调查用于量子信息处理的PST协议的平价依赖性.
主要方法:
- 采用了六个超导跨子量子比特的链,配有可调节的合器.
- 采用参数驱动器来控制并同时激活所有最近邻合器.
- 实施和验证的单次激发动态和取决于平价的多次激发动态.
主要成果:
- 成功演示了多达六个量子比特的完美状态转移,证实了时间最佳动态.
- 验证了多次激发的转移状态中的平价依赖相积.
- 使用单个PST操作准备了一个Greenberger-Horne-Zeilinger (GHZ) 状态.
结论:
- 完美状态转移是一种可行的技术,用于增强超导量子处理器中的连接性.
- 在PST中固有的依赖于平价的相互作用是有效的产生多量子比特纠.
- PST为高效和可扩展的量子信息处理和纠生成提供了一个有希望的途径.
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