通过状态断层扫描测量两个超导量子比特的纠
Matthias Steffen1, M Ansmann, Radoslaw C Bialczak
1Department of Physics and California Nano Systems Institute, University of California, Santa Barbara, CA 93106, USA.
概括
研究人员使用同时测量和状态断层扫描证明了两个超导量子比特之间的量子纠. 这一成就,具有87%的忠实度,显示了高度控制,并为更大的量子计算系统铺平了道路.
科学领域:
- 量子物理学 量子物理学 是一种量子物理学.
- 量子计算是一种量子计算.
背景情况:
- 量子纠是量子计算的关键资源,源于非经典的相关性.
- 为了证明纠,必须对各个基础的状态进行完整的测量.
研究的目的:
- 为了证明两个固态量子比特之间的纠.
- 评估生成的纠状态的忠实性和控制.
主要方法:
- 利用单个量子位操作和电容合来在两个超导相位量子位之间创建贝尔型状态.
- 采用了同时测量和完整的两量子比特状态断层扫描来描述纠.
主要成果:
- 成功地在两个超导量子比特之间产生了纠状态.
- 在纠状态下达到了高达87%的保真度,密度矩阵分析证实了这一点.
- 证明了对量子系统的高度统一控制.
结论:
- 该研究成功地证明了两个固态量子比特之间的高保真性纠.
- 实现的控制水平表明了扩展量子计算架构的可行性.
- 这项工作为构建更大,功能更强的量子计算机迈出了重要一步.
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