RIP Akira Tonomura 外村 彰

RIP Akira Tonomura (1942-2012), inventor of electron holography and leader of the Hitachi team that produced the most elegant and convincing proof of the misnamed “Aharonov-Bohm” effect (first proposed by Ehrenberg and Siday a decade before Aharonov and Bohm). Most of my current physics effort has been deeply influenced by his work. Vector potentials are real. The universe is not EM-gauge invariant, damn it!