论文标题
旋转的Ansatz进行近似残绝热驾驶
Rotated ansatz for approximate counterdiabatic driving
论文作者
论文摘要
近似的抵绝热（CD）方案是增强量子绝热过程的强大工具，可以在短时间尺度上可靠地操纵量子系统。但是，实施CD协议需要在哈密顿量中引入其他控制场，通常与高度非本地的多体相互作用有关。在这里，我们引入了一种新型的变分旋转的ANSATZ（RA），以系统地生成实验可访问的近似CD协议。我们在数值上基于状态制备和绝热量子计算算法的方法，发现使用RA协议可显着增强其性能。
Approximate counterdiabatic (CD) protocols are a powerful tool to enhance quantum adiabatic processes that allow to reliably manipulate quantum systems on short time scales. However, implementing CD protocols entails the introduction of additional control fields in the Hamiltonian, often associated with highly non-local multi-body interactions. Here, we introduce a novel variational rotated ansatz (RA) to systematically generate experimentally accessible approximate CD protocols. We numerically benchmark our approach on state preparation and adiabatic quantum computing algorithms, and find that using RA protocols significantly enhances their performances.
