中的三量子位捐赠量子处理器的精密断层扫描
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在PubMed上查看摘要
概括
此摘要是机器生成的。研究人员展示了中核旋转的普遍量子逻辑运算. 这一突破通过在核量子位上实现高可靠性纠和操作,为容错处理器铺平了道路.
科学领域
- 量子计算和信息处理.
- 固态量子系统
- 核旋转物理学
背景情况
- 核旋转提供了特殊的量子连贯性和量子信息处理的原子尺度足迹.
- 由于缺乏可扩展的链接方法和高可靠的多量子比特运算,无法实现核量子比特的全部潜力.
研究的目的
- 在纳米电子装置内展示核旋转的通用量子逻辑运算.
- 在核量子位和共享电子旋转之间实现高可靠性纠.
- 建立可扩展量子信息处理的可行途径,
主要方法
- 在纳米电子装置中使用了离子植入的31P供体核.
- 通过共享电子旋转传递的几何相实现了核二量子位受控Z门.
- 用于量子操作的精确表征的门组断层学 (GST).
主要成果
- 在核量子比特之间实现了高达94.2%~2.7%的纠贝尔状态.
- 获得的高平均网关保真率:高达1量子比特的99.95%,高达2量子比特的99.37%.
- 证明了三量子比特的格林伯格-霍恩-齐林格状态,具有92.5%的保真度,显示了两个原子核和一个共享电子之间的纠.
结论
- 中的核旋转正在接近容错量子处理器所需的性能.
- 已证明的高保真性运算和纠为可扩展的量子信息处理提供了可行的途径.
- 将电子自旋量子比特合到其他电子或物理地运送它们进一步提高了这种方法的可扩展性.
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