5 research outputs found
Error of an arbitrary single-mode Gaussian transformation on a weighted cluster state using a cubic phase gate
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.Comment: 14 pages, 8 figure