论文标题
使用立方相位门在加权群集状态上任意单模高斯转换的误差
Error of an arbitrary single-mode Gaussian transformation on a weighted cluster state using a cubic phase gate
论文作者
论文摘要
在本文中，我们提出了两种策略，以减少使用四节点线性群集状态上的单向量子计算实现的任意单模高斯变换的误差。我们表明，可以通过正确选择聚类状态的重量系数来最大程度地减少任意单模高斯转换的误差。我们通过添加使用立方相门获得的非高斯状态来修改计算方案，作为群集的节点之一。这进一步减少了计算误差。我们评估了提出的优化方案的效率，以比较有或没有优化的量子计算的误差校正的概率。我们已经表明，对于某些转换，可以将错误概率降低多达900次。
In this paper, we propose two strategies for decreasing the error of arbitrary single-mode Gaussian transformations implemented using one-way quantum computation on a four-node linear cluster state. We show that it is possible to minimize the error of the arbitrary single-mode Gaussian transformation by a proper choice of the weight coefficients of the cluster state. We modify the computation scheme by adding a non-Gaussian state obtained using a cubic phase gate as one of the nodes of the cluster. This further decreases the computation error. We evaluate the efficiencies of the proposed optimization schemes comparing the probabilities of the error correction of the quantum computations with and without optimizations. We have shown that for some transformations, the error probability can be reduced by up to 900 times.
