The Fermion Determinant in Massless Two-Dimensional QCD
I was very lucky to have been a colleague of Feza Gürsey’s from 1965 to 1971 at Yale. As a young Ph. D. I learned a great deal from him—about field theory, group theory, and mathematics in general—and I came to admire his originality and the elegance of his ideas. Most people seem to associate Feza’s physics with aspects of group theory. But what struck me most about him in the late 60’s was his conviction that field theory would be the source of our new insights, even into strong interaction physics. This was by no means the party line at the time.
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