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在量子处理器上创建和控制全球格林伯格-霍恩-齐林格纠
Zehang Bao1, Shibo Xu1, Zixuan Song1
1School of Physics, ZJU-Hangzhou Global Scientific and Technological Innovation Center, and Zhejiang Key Laboratory of Micro-nano Quantum Chips and Quantum Control, Zhejiang University, Hangzhou, China.
Nature communications
|October 11, 2024
概括
研究人员创建了大规模的格林伯格-霍恩-齐林格 (GHZ) 状态,将量子比特记录翻了一番. 他们使用离散时间晶体 (DTC) 保存和操纵这些状态,以实现量子计算的进步.
科学领域:
- 量子物理学 量子物理学 是一种量子物理学.
- 量子信息科学 量子信息科学
- 凝聚物质物理学 凝聚物质物理学
背景情况:
- 格林伯格-霍恩-齐林格 (GHZ) 状态是量子力学和量子应用的基础.
- 扩大GHZ状态并保持它们的连贯性对于先进的量子计算至关重要,但由于噪声脆弱性而具有挑战性.
研究的目的:
- 制定一个创建,保存和操纵大规模GHZ纠的总策略.
- 在超导处理器上使用高保真度数字量子电路来演示这一策略.
主要方法:
- 利用一个可扩展的协议来初始化真正纠的GHZ状态,最高可达60个量子比特.
- 采用离散时间晶体 (DTC) 及其定制的猫痕特征,用于GHZ状态保护和寿命延长.
- 实现了现场量子门来操纵DTC固态并修改GHZ状态保护的有效性.
主要成果:
- 成功创建了高达60个量子位的GHZ状态,显著提升了大小记录.
- 通过将它们嵌入DTC特征状态中,证明了GHZ状态的延长寿命和增强保护.
- 展示了使用量子门操纵GHZ状态保护的能力.
结论:
- 建立了一个可行的途径,用于大规模GHZ纠的连贯操作.
- 突出了超导处理器作为探索不平衡量子物质和新兴量子应用的有希望的平台.
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