Performance enhancement of surface codes via recursive minimum-weight perfect-match decoding
Performance enhancement of surface codes via recursive minimum-weight perfect-match decoding
The minimum weight perfect matching (MWPM) decoder is the standard decoding strategy for quantum surface codes. However, it suffers a harsh decrease in performance when subjected to biased or non-identical quantum noise. In this work, we modify the conventional MWPM decoder so that it considers the biases, the non-uniformities and …