TOPOLOGY AND GAUGE THEORY IN PHYSICS
A speech given at a conference in memory of Tonomura, Tokyo, May 2012.
I am deeply touched by the short message that Tonomura recorded for all of us today. It reminded me of my first visit to his laboratory in the early 1980s and the many conferences that I attended that he had organized in Japan. It also recalled for me the many discussions that he and I had, not only about the Aharonov–Bohm effect, but also about flux movement in superconductors, especially after the 1987 discovery of high-temperature superconductors. He and I had in these years many warm and fruitful meetings in Japan, in China, and in the United States. Last winter I was very happy to have received a photograph of him standing in a garden a few months after his operation. I thought he was on his way to full recovery. But that was not to be…
