郝明星,高一波

• 1:北京工业大学理学部物理与光电工程系

摘要(Abstract)：

在用变分法求解量子系统基态问题的研究中，采用变分量子算法求解基态的研究受到广泛的关注，作为一种量子与经典混合算法的变分量子求解器在其中发挥了重要作用。本文在开源的量子计算模拟器上运行变分量子本征求解器对量子拉比模型在超强耦合区的基态进行了讨论。在3量子比特空间中，我们采用标准二进制编码方式将量子拉比模型中的算符和量子态进行编码，并且在哈密顿量变分拟设构造的量子电路上计算得到哈密顿量最小平均值(基态能量)。最后，通过将变分量子本征求解器的计算结果与经典数值模拟方法得到的精确值进行对比，我们讨论了变分量子本征求解器的计算精度与量子电路的消耗资源(量子比特数目)以及耦合强度之间的依赖关系。

关键词(KeyWords)： 量子拉比模型;变分量子本征求解器;量子计算模拟器

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(11674017)

作者(Author): 郝明星,高一波

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