Gauge principle and QED

Abstract

One of the major developments of twentieth century physics has been the gradual recognition that a common feature of the known fundamental interactions is their gauge structure. In this talk the early history of gauge theory is reviewed, emphasizing especially Weyl's seminal contributions of 1918 and 1929.

Comments: Invited talk at PHOTON2005, 31.8-04.09, 2005, Warsaw, 19 pages