多通道兰道-泽纳道振荡在原子量子比特的双重连接中
Alessandro Fregosi1, Carmela Marinelli1,2, Carlo Gabbanini1
1INO-CNR, Via G. Moruzzi 1, 56124, Pisa, Italy.
Scientific reports
|January 27, 2026
概括
我们探索了如何将量子自旋组合与电磁场的双重连接控制量子比特进化. 这种方法增强了量子控制和操纵,超出了标准干涉计.
科学领域:
- 量子物理学 量子物理学 是一种量子物理学.
- 原子物理 原子物理
- 量子信息科学 量子信息科学
背景情况:
- 非共振电磁场,称为"装饰",提供精确控制量子系统.
- 穿着原子连贯自旋组合作为量子比特起作用,这对于量子信息处理至关重要.
研究的目的:
- 在双组件电磁场驱动下,研究穿着原子量子位的时间演变.
- 扩展兰道-泽纳多通道干扰计,增加一个用于道控制的附加修饰场.
主要方法:
- 使用双装饰配置与直角电磁场组件.
- 测量量子比特连贯性和过渡概率,分析频率调制的自旋演变.
- 开发了一种针对低频连接的特设连接扰动处理方法,偏离了标准的Floquet工程.
主要成果:
- 由于纵向连接,观察到频率调制的旋转时间演变.
- 确定了连贯时间演变中的多个振荡频率,每一个都与不同的量子贡献有关.
- 演示了一种扩展的干扰测量技术,具有增强的读取功能.
结论:
- 双装饰配置提供了新的量子状态操纵和控制能力.
- 频率描述为量子比特多通道演变提供了新的视角.
- 在鲁比和原子磁计中的实验验证证证了理论框架.
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