论文标题
假想时间演变中的概率非单身门
Probabilistic Nonunitary Gate in Imaginary Time Evolution
论文作者
论文摘要
量子问题的模拟是量子计算机的重要应用。与可以在量子计算机上自然实现的统一操作相反，在经典方法中广泛使用的单身操作的实现需要特殊设计。在这里，通过应用Grover的算法，我们扩展了实施非单身操作的概率方法，并表明它可以促进成功概率而不会降低。该方法可以应用于量子计算机上想象的时间演变和张量网络的收缩问题。
Simulation of quantum matters is a significant application of quantum computers. In contrast to the unitary operation which can be realized naturally on a quantum computer, the implementation of nonunitary operation, widely used in classical approaches, needs special designing. Here, by application of Grover's algorithm, we extend the probabilistic method of implementing nonunitary operation and show that it can promote success probability without fidelity decreasing. This method can be applied to problems of imaginary time evolution and contraction of tensor networks on a quantum computer.
