I am very sad to learn that Sean Barrett of Imperial College London, who made important contributions to fault tolerance and optical quantum computing, among other areas, was tragically killed in a traffic accident in Perth on Friday. He was just 36 years old.
Sean had a gift for working at the boundary where theory meets experiment, and many of his theoretical contributions over the past decade have led to experimental progress. Sean’s presence was felt especially strongly here in Australia, where he spent several years as a researcher. He was not only a valued member of our research community but was also a personal friend to many of us, and he will be sorely missed.