Nicolas Delfosse is an expert in quantum error correction and fault tolerance. The goal of his research is to use these techniques to make quantum bits and quantum operations good enough to run large-scale quantum algorithms and to solve practical problems.
Nicolas has worked on different kinds of quantum error correction codes including surface codes, color codes, Floquet codes, block codes and LDPC codes. One of his favorite research problems is the design of fast decoders for these codes. He designed some popular decoding algorithms such as the Union-Find decoder, the projection decoder for color codes or the peeling decoder capable of correcting erasures.