论文标题
NISQ算法，用于通用可观察的矩阵元素
NISQ algorithm for the matrix elements of a generic observable
论文作者
论文摘要
离子基矩阵元件的计算在核物理和量子化学等领域中具有各种应用。在本文中，我们提出了一种嘈杂的中间尺度量子算法，用于估计给定汉密尔顿的能量本质上的通用特征性元素的对角线和非对角线矩阵元素。几个数值模拟表明，即使试验函数是在广泛的参数值中随机初始初始初始初始初始初始初始初始初始初米的，因此这种方法可以找到许多矩阵元素。
The calculation of off-diagonal matrix elements has various applications in fields such as nuclear physics and quantum chemistry. In this paper, we present a noisy intermediate scale quantum algorithm for estimating the diagonal and off-diagonal matrix elements of a generic observable in the energy eigenbasis of a given Hamiltonian. Several numerical simulations indicate that this approach can find many of the matrix elements even when the trial functions are randomly initialized across a wide range of parameter values without, at the same time, the need to prepare the energy eigenstates.
