Gray code based gradient-free optimization algorithm for parameterized quantum circuit
Anqi 安琪 Zhang 张,
Chunhui 春辉 Wu 武,
Shengmei 生妹 Zhao 赵
Abstract:A Gray code based gradient-free optimization algorithm(GCO) is proposed to update the parameters of parameterized quantum circuits(PQCs) in the paper. Here, each parameter of PQCs is encoded as a binary string, named genes, and a genetic-based method is adopted to select the offsprings. The individuals in the offspring are decoded in Gray code way to keep Hamming distance, and then are evaluated to obtain the best one with the lowest cost value in each iteration. The algorithm is performed iteratively for all … Show more
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