通过最优的控制来模拟量子走在一个圈子上的极性分子
Yi-Kai Ding1, Zuo-Yuan Zhang2, Jin-Ming Liu1
1State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China.
The Journal of chemical physics
|November 27, 2023
概括
这项研究证明了使用极性分子在圆上进行离散时间量子步行. 最佳的控制脉冲实现了高保真度量子步行,为先进的量子信息处理铺平了道路.
科学领域:
- 量子信息科学 量子信息科学
- 原子和分子物理 原子和分子物理
- 量子计算是一种量子计算.
背景情况:
- 量子步行对于量子算法和仿真至关重要.
- 极性分子为量子信息处理提供了很长的连贯时间和丰富的能量结构.
- 实现可控制系统的量子步行仍然是一个重大挑战.
研究的目的:
- 提出一个理论方案的离散时间量子走在一个循环使用极性SrO分子.
- 为高保真量子步行实现设计最佳的控制脉冲.
- 探索将量子步行者编码成分子量子位和量子位,以减少资源需求.
主要方法:
- 使用SrO分子之间的双极-双极相互作用.
- 将步行者和硬币状态编码为由电场诱导的分子摆形状态.
- 应用多目标最佳控制理论来设计微波脉冲.
- 在三节点和四节点的循环布局上研究量子步行.
主要成果:
- 成功设计了在圆形图上进行量子步行的最佳微波脉冲.
- 实现了一步的量子步行与一个最佳脉冲,减少脱节.
- 演示了编码成分子量子和量子,减少所需的分子数量.
- 通过最佳控制,确认了所有拟议的循环量子步行的高保真度.
结论:
- 拟议的方案提供了一种可行的方法来实现与极性分子的离散时间量子步行.
- 最佳的控制场允许在循环网络上高保真执行量子步行.
- 使用分子和四为高效的高维量子信息处理提供了一条途径.
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