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两个逻辑量子比特之间的量子门的决定性传输
Kevin S Chou1,2, Jacob Z Blumoff3,4,5, Christopher S Wang3,4
1Department of Applied Physics and Physics, Yale University, New Haven, CT, USA. kevin.chou@yale.edu.
Nature
|September 7, 2018
概括
研究人员展示了量子逻辑门的决定性传输,这是构建强大的模块化量子计算机的关键步骤. 这种进步使用实时自适应控制和可纠正错误的逻辑量子比特进行容错的量子计算.
科学领域:
- 量子计算
- 量子信息科学
- 模块化量子架构
背景情况:
- 大规模的量子处理器面临着噪音和错误的挑战.
- 模块化为构建复杂的量子系统提供了强大的策略.
- 量子网络将单独的量子系统连接起来,
研究的目的:
- 通过实验证明一个纠量子门的决定性传输.
- 使用可纠错编码在两个逻辑量子位之间实现控制式NOT (CNOT) 门.
- 推进用于容错量子计算的模块化量子架构的开发.
主要方法:
- 量子门传输的实验演示.
- 使用实时自适应控制来实现决定性门转移.
- 在超导空腔中编码量子信息以纠错.
主要成果:
- 一个受控的NOT (CNOT) 门的成功确定性传输.
- 在逻辑量子位之间实现了79%的流程保真.
- 证明了向强大的,可纠正错误的量子模块迈出的关键一步.
结论:
- 连结门的决定性传输是可以实现的.
- 具有可纠错逻辑量子比特的模块化架构对容错量子计算具有前景.
- 这项工作对量子通信,计量学和模拟有影响.
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